From: "Mike Pagano" <mpagano@gentoo.org>
To: gentoo-commits@lists.gentoo.org
Subject: [gentoo-commits] proj/linux-patches:3.12 commit in: /
Date: Fri, 26 Feb 2016 20:15:00 +0000 (UTC) [thread overview]
Message-ID: <1456517726.a9b51bc6c6908975759a5b2c20f868827fc94bf3.mpagano@gentoo> (raw)
commit: a9b51bc6c6908975759a5b2c20f868827fc94bf3
Author: Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Fri Feb 26 20:15:26 2016 +0000
Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Fri Feb 26 20:15:26 2016 +0000
URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=a9b51bc6
Linux patch 3.12.55
0000_README | 4 +
1054_linux-3.12.55.patch | 5379 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 5383 insertions(+)
diff --git a/0000_README b/0000_README
index 54bac92..1c7c3c7 100644
--- a/0000_README
+++ b/0000_README
@@ -258,6 +258,10 @@ Patch: 1053_linux-3.12.54.patch
From: http://www.kernel.org
Desc: Linux 3.12.54
+Patch: 1054_linux-3.12.55.patch
+From: http://www.kernel.org
+Desc: Linux 3.12.55
+
Patch: 1500_XATTR_USER_PREFIX.patch
From: https://bugs.gentoo.org/show_bug.cgi?id=470644
Desc: Support for namespace user.pax.* on tmpfs.
diff --git a/1054_linux-3.12.55.patch b/1054_linux-3.12.55.patch
new file mode 100644
index 0000000..a0605fb
--- /dev/null
+++ b/1054_linux-3.12.55.patch
@@ -0,0 +1,5379 @@
+diff --git a/Makefile b/Makefile
+index 0d86c6da7d7e..417164d9cd46 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 3
+ PATCHLEVEL = 12
+-SUBLEVEL = 54
++SUBLEVEL = 55
+ EXTRAVERSION =
+ NAME = One Giant Leap for Frogkind
+
+diff --git a/arch/arm/boot/dts/kirkwood-ts219.dtsi b/arch/arm/boot/dts/kirkwood-ts219.dtsi
+index 39158cf16258..067e1e98e831 100644
+--- a/arch/arm/boot/dts/kirkwood-ts219.dtsi
++++ b/arch/arm/boot/dts/kirkwood-ts219.dtsi
+@@ -47,7 +47,7 @@
+ };
+ poweroff@12100 {
+ compatible = "qnap,power-off";
+- reg = <0x12000 0x100>;
++ reg = <0x12100 0x100>;
+ clocks = <&gate_clk 7>;
+ };
+ spi@10600 {
+diff --git a/arch/arm/common/icst.c b/arch/arm/common/icst.c
+index 2dc6da70ae59..d7ed252708c5 100644
+--- a/arch/arm/common/icst.c
++++ b/arch/arm/common/icst.c
+@@ -16,7 +16,7 @@
+ */
+ #include <linux/module.h>
+ #include <linux/kernel.h>
+-
++#include <asm/div64.h>
+ #include <asm/hardware/icst.h>
+
+ /*
+@@ -29,7 +29,11 @@ EXPORT_SYMBOL(icst525_s2div);
+
+ unsigned long icst_hz(const struct icst_params *p, struct icst_vco vco)
+ {
+- return p->ref * 2 * (vco.v + 8) / ((vco.r + 2) * p->s2div[vco.s]);
++ u64 dividend = p->ref * 2 * (u64)(vco.v + 8);
++ u32 divisor = (vco.r + 2) * p->s2div[vco.s];
++
++ do_div(dividend, divisor);
++ return (unsigned long)dividend;
+ }
+
+ EXPORT_SYMBOL(icst_hz);
+@@ -58,6 +62,7 @@ icst_hz_to_vco(const struct icst_params *p, unsigned long freq)
+
+ if (f > p->vco_min && f <= p->vco_max)
+ break;
++ i++;
+ } while (i < 8);
+
+ if (i >= 8)
+diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
+index 2e381582ffee..8a03e9a31a3f 100644
+--- a/arch/arm/mm/proc-v7.S
++++ b/arch/arm/mm/proc-v7.S
+@@ -95,7 +95,7 @@ ENDPROC(cpu_v7_dcache_clean_area)
+ .equ cpu_v7_suspend_size, 4 * 8
+ #ifdef CONFIG_ARM_CPU_SUSPEND
+ ENTRY(cpu_v7_do_suspend)
+- stmfd sp!, {r4 - r10, lr}
++ stmfd sp!, {r4 - r11, lr}
+ mrc p15, 0, r4, c13, c0, 0 @ FCSE/PID
+ mrc p15, 0, r5, c13, c0, 3 @ User r/o thread ID
+ stmia r0!, {r4 - r5}
+@@ -108,7 +108,7 @@ ENTRY(cpu_v7_do_suspend)
+ mrc p15, 0, r9, c1, c0, 1 @ Auxiliary control register
+ mrc p15, 0, r10, c1, c0, 2 @ Co-processor access control
+ stmia r0, {r6 - r11}
+- ldmfd sp!, {r4 - r10, pc}
++ ldmfd sp!, {r4 - r11, pc}
+ ENDPROC(cpu_v7_do_suspend)
+
+ ENTRY(cpu_v7_do_resume)
+diff --git a/arch/m32r/kernel/setup.c b/arch/m32r/kernel/setup.c
+index 0392112a5d70..a5ecef7188ba 100644
+--- a/arch/m32r/kernel/setup.c
++++ b/arch/m32r/kernel/setup.c
+@@ -81,7 +81,10 @@ static struct resource code_resource = {
+ };
+
+ unsigned long memory_start;
++EXPORT_SYMBOL(memory_start);
++
+ unsigned long memory_end;
++EXPORT_SYMBOL(memory_end);
+
+ void __init setup_arch(char **);
+ int get_cpuinfo(char *);
+diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
+index 294d251ca7b2..2ae13ce592e8 100644
+--- a/arch/parisc/include/uapi/asm/mman.h
++++ b/arch/parisc/include/uapi/asm/mman.h
+@@ -46,16 +46,6 @@
+ #define MADV_DONTFORK 10 /* don't inherit across fork */
+ #define MADV_DOFORK 11 /* do inherit across fork */
+
+-/* The range 12-64 is reserved for page size specification. */
+-#define MADV_4K_PAGES 12 /* Use 4K pages */
+-#define MADV_16K_PAGES 14 /* Use 16K pages */
+-#define MADV_64K_PAGES 16 /* Use 64K pages */
+-#define MADV_256K_PAGES 18 /* Use 256K pages */
+-#define MADV_1M_PAGES 20 /* Use 1 Megabyte pages */
+-#define MADV_4M_PAGES 22 /* Use 4 Megabyte pages */
+-#define MADV_16M_PAGES 24 /* Use 16 Megabyte pages */
+-#define MADV_64M_PAGES 26 /* Use 64 Megabyte pages */
+-
+ #define MADV_MERGEABLE 65 /* KSM may merge identical pages */
+ #define MADV_UNMERGEABLE 66 /* KSM may not merge identical pages */
+
+diff --git a/arch/parisc/include/uapi/asm/siginfo.h b/arch/parisc/include/uapi/asm/siginfo.h
+index d7034728f377..1c75565d984b 100644
+--- a/arch/parisc/include/uapi/asm/siginfo.h
++++ b/arch/parisc/include/uapi/asm/siginfo.h
+@@ -1,6 +1,10 @@
+ #ifndef _PARISC_SIGINFO_H
+ #define _PARISC_SIGINFO_H
+
++#if defined(__LP64__)
++#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
++#endif
++
+ #include <asm-generic/siginfo.h>
+
+ #undef NSIGTRAP
+diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
+index 1cba8f29bb49..78bb6dd88e03 100644
+--- a/arch/parisc/kernel/signal.c
++++ b/arch/parisc/kernel/signal.c
+@@ -442,6 +442,55 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
+ regs->gr[28]);
+ }
+
++/*
++ * Check how the syscall number gets loaded into %r20 within
++ * the delay branch in userspace and adjust as needed.
++ */
++
++static void check_syscallno_in_delay_branch(struct pt_regs *regs)
++{
++ u32 opcode, source_reg;
++ u32 __user *uaddr;
++ int err;
++
++ /* Usually we don't have to restore %r20 (the system call number)
++ * because it gets loaded in the delay slot of the branch external
++ * instruction via the ldi instruction.
++ * In some cases a register-to-register copy instruction might have
++ * been used instead, in which case we need to copy the syscall
++ * number into the source register before returning to userspace.
++ */
++
++ /* A syscall is just a branch, so all we have to do is fiddle the
++ * return pointer so that the ble instruction gets executed again.
++ */
++ regs->gr[31] -= 8; /* delayed branching */
++
++ /* Get assembler opcode of code in delay branch */
++ uaddr = (unsigned int *) ((regs->gr[31] & ~3) + 4);
++ err = get_user(opcode, uaddr);
++ if (err)
++ return;
++
++ /* Check if delay branch uses "ldi int,%r20" */
++ if ((opcode & 0xffff0000) == 0x34140000)
++ return; /* everything ok, just return */
++
++ /* Check if delay branch uses "nop" */
++ if (opcode == INSN_NOP)
++ return;
++
++ /* Check if delay branch uses "copy %rX,%r20" */
++ if ((opcode & 0xffe0ffff) == 0x08000254) {
++ source_reg = (opcode >> 16) & 31;
++ regs->gr[source_reg] = regs->gr[20];
++ return;
++ }
++
++ pr_warn("syscall restart: %s (pid %d): unexpected opcode 0x%08x\n",
++ current->comm, task_pid_nr(current), opcode);
++}
++
+ static inline void
+ syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
+ {
+@@ -464,10 +513,7 @@ syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)
+ }
+ /* fallthrough */
+ case -ERESTARTNOINTR:
+- /* A syscall is just a branch, so all
+- * we have to do is fiddle the return pointer.
+- */
+- regs->gr[31] -= 8; /* delayed branching */
++ check_syscallno_in_delay_branch(regs);
+ break;
+ }
+ }
+@@ -516,15 +562,9 @@ insert_restart_trampoline(struct pt_regs *regs)
+ }
+ case -ERESTARTNOHAND:
+ case -ERESTARTSYS:
+- case -ERESTARTNOINTR: {
+- /* Hooray for delayed branching. We don't
+- * have to restore %r20 (the system call
+- * number) because it gets loaded in the delay
+- * slot of the branch external instruction.
+- */
+- regs->gr[31] -= 8;
++ case -ERESTARTNOINTR:
++ check_syscallno_in_delay_branch(regs);
+ return;
+- }
+ default:
+ break;
+ }
+diff --git a/arch/s390/mm/extable.c b/arch/s390/mm/extable.c
+index 4d1ee88864e8..18c8b819b0aa 100644
+--- a/arch/s390/mm/extable.c
++++ b/arch/s390/mm/extable.c
+@@ -52,12 +52,16 @@ void sort_extable(struct exception_table_entry *start,
+ int i;
+
+ /* Normalize entries to being relative to the start of the section */
+- for (p = start, i = 0; p < finish; p++, i += 8)
++ for (p = start, i = 0; p < finish; p++, i += 8) {
+ p->insn += i;
++ p->fixup += i + 4;
++ }
+ sort(start, finish - start, sizeof(*start), cmp_ex, NULL);
+ /* Denormalize all entries */
+- for (p = start, i = 0; p < finish; p++, i += 8)
++ for (p = start, i = 0; p < finish; p++, i += 8) {
+ p->insn -= i;
++ p->fixup -= i + 4;
++ }
+ }
+
+ #ifdef CONFIG_MODULES
+diff --git a/arch/sh/include/uapi/asm/unistd_64.h b/arch/sh/include/uapi/asm/unistd_64.h
+index e6820c86e8c7..47ebd5b5ed55 100644
+--- a/arch/sh/include/uapi/asm/unistd_64.h
++++ b/arch/sh/include/uapi/asm/unistd_64.h
+@@ -278,7 +278,7 @@
+ #define __NR_fsetxattr 256
+ #define __NR_getxattr 257
+ #define __NR_lgetxattr 258
+-#define __NR_fgetxattr 269
++#define __NR_fgetxattr 259
+ #define __NR_listxattr 260
+ #define __NR_llistxattr 261
+ #define __NR_flistxattr 262
+diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
+index aabdf762f592..0fcd960b382a 100644
+--- a/arch/x86/mm/pageattr.c
++++ b/arch/x86/mm/pageattr.c
+@@ -32,7 +32,7 @@ struct cpa_data {
+ unsigned long *vaddr;
+ pgprot_t mask_set;
+ pgprot_t mask_clr;
+- int numpages;
++ unsigned long numpages;
+ int flags;
+ unsigned long pfn;
+ unsigned force_split : 1;
+@@ -884,7 +884,7 @@ static int __change_page_attr_set_clr(struct cpa_data *cpa, int checkalias)
+ * CPA operation. Either a large page has been
+ * preserved or a single page update happened.
+ */
+- BUG_ON(cpa->numpages > numpages);
++ BUG_ON(cpa->numpages > numpages || !cpa->numpages);
+ numpages -= cpa->numpages;
+ if (cpa->flags & (CPA_PAGES_ARRAY | CPA_ARRAY))
+ cpa->curpage++;
+diff --git a/block/blk-core.c b/block/blk-core.c
+index de352508333f..876c2bac0b51 100644
+--- a/block/blk-core.c
++++ b/block/blk-core.c
+@@ -3097,6 +3097,9 @@ int blk_pre_runtime_suspend(struct request_queue *q)
+ {
+ int ret = 0;
+
++ if (!q->dev)
++ return ret;
++
+ spin_lock_irq(q->queue_lock);
+ if (q->nr_pending) {
+ ret = -EBUSY;
+@@ -3124,6 +3127,9 @@ EXPORT_SYMBOL(blk_pre_runtime_suspend);
+ */
+ void blk_post_runtime_suspend(struct request_queue *q, int err)
+ {
++ if (!q->dev)
++ return;
++
+ spin_lock_irq(q->queue_lock);
+ if (!err) {
+ q->rpm_status = RPM_SUSPENDED;
+@@ -3148,6 +3154,9 @@ EXPORT_SYMBOL(blk_post_runtime_suspend);
+ */
+ void blk_pre_runtime_resume(struct request_queue *q)
+ {
++ if (!q->dev)
++ return;
++
+ spin_lock_irq(q->queue_lock);
+ q->rpm_status = RPM_RESUMING;
+ spin_unlock_irq(q->queue_lock);
+@@ -3170,6 +3179,9 @@ EXPORT_SYMBOL(blk_pre_runtime_resume);
+ */
+ void blk_post_runtime_resume(struct request_queue *q, int err)
+ {
++ if (!q->dev)
++ return;
++
+ spin_lock_irq(q->queue_lock);
+ if (!err) {
+ q->rpm_status = RPM_ACTIVE;
+diff --git a/crypto/af_alg.c b/crypto/af_alg.c
+index 6ef6e2ad344e..de130c24a64b 100644
+--- a/crypto/af_alg.c
++++ b/crypto/af_alg.c
+@@ -76,6 +76,8 @@ int af_alg_register_type(const struct af_alg_type *type)
+ goto unlock;
+
+ type->ops->owner = THIS_MODULE;
++ if (type->ops_nokey)
++ type->ops_nokey->owner = THIS_MODULE;
+ node->type = type;
+ list_add(&node->list, &alg_types);
+ err = 0;
+@@ -125,6 +127,23 @@ int af_alg_release(struct socket *sock)
+ }
+ EXPORT_SYMBOL_GPL(af_alg_release);
+
++void af_alg_release_parent(struct sock *sk)
++{
++ struct alg_sock *ask = alg_sk(sk);
++ bool last;
++
++ sk = ask->parent;
++ ask = alg_sk(sk);
++
++ lock_sock(sk);
++ last = !--ask->refcnt;
++ release_sock(sk);
++
++ if (last)
++ sock_put(sk);
++}
++EXPORT_SYMBOL_GPL(af_alg_release_parent);
++
+ static int alg_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
+ {
+ struct sock *sk = sock->sk;
+@@ -132,6 +151,7 @@ static int alg_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
+ struct sockaddr_alg *sa = (void *)uaddr;
+ const struct af_alg_type *type;
+ void *private;
++ int err;
+
+ if (sock->state == SS_CONNECTED)
+ return -EINVAL;
+@@ -157,16 +177,22 @@ static int alg_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
+ return PTR_ERR(private);
+ }
+
++ err = -EBUSY;
+ lock_sock(sk);
++ if (ask->refcnt)
++ goto unlock;
+
+ swap(ask->type, type);
+ swap(ask->private, private);
+
++ err = 0;
++
++unlock:
+ release_sock(sk);
+
+ alg_do_release(type, private);
+
+- return 0;
++ return err;
+ }
+
+ static int alg_setkey(struct sock *sk, char __user *ukey,
+@@ -199,11 +225,15 @@ static int alg_setsockopt(struct socket *sock, int level, int optname,
+ struct sock *sk = sock->sk;
+ struct alg_sock *ask = alg_sk(sk);
+ const struct af_alg_type *type;
+- int err = -ENOPROTOOPT;
++ int err = -EBUSY;
+
+ lock_sock(sk);
++ if (ask->refcnt)
++ goto unlock;
++
+ type = ask->type;
+
++ err = -ENOPROTOOPT;
+ if (level != SOL_ALG || !type)
+ goto unlock;
+
+@@ -229,6 +259,7 @@ int af_alg_accept(struct sock *sk, struct socket *newsock)
+ const struct af_alg_type *type;
+ struct sock *sk2;
+ int err;
++ bool nokey;
+
+ lock_sock(sk);
+ type = ask->type;
+@@ -247,20 +278,27 @@ int af_alg_accept(struct sock *sk, struct socket *newsock)
+ security_sk_clone(sk, sk2);
+
+ err = type->accept(ask->private, sk2);
+- if (err) {
+- sk_free(sk2);
++
++ nokey = err == -ENOKEY;
++ if (nokey && type->accept_nokey)
++ err = type->accept_nokey(ask->private, sk2);
++
++ if (err)
+ goto unlock;
+- }
+
+ sk2->sk_family = PF_ALG;
+
+- sock_hold(sk);
++ if (nokey || !ask->refcnt++)
++ sock_hold(sk);
+ alg_sk(sk2)->parent = sk;
+ alg_sk(sk2)->type = type;
+
+ newsock->ops = type->ops;
+ newsock->state = SS_CONNECTED;
+
++ if (nokey)
++ newsock->ops = type->ops_nokey;
++
+ err = 0;
+
+ unlock:
+diff --git a/crypto/ahash.c b/crypto/ahash.c
+index 857ae2b2a2a2..b246858ca032 100644
+--- a/crypto/ahash.c
++++ b/crypto/ahash.c
+@@ -369,6 +369,7 @@ static int crypto_ahash_init_tfm(struct crypto_tfm *tfm)
+ struct ahash_alg *alg = crypto_ahash_alg(hash);
+
+ hash->setkey = ahash_nosetkey;
++ hash->has_setkey = false;
+ hash->export = ahash_no_export;
+ hash->import = ahash_no_import;
+
+@@ -381,8 +382,10 @@ static int crypto_ahash_init_tfm(struct crypto_tfm *tfm)
+ hash->finup = alg->finup ?: ahash_def_finup;
+ hash->digest = alg->digest;
+
+- if (alg->setkey)
++ if (alg->setkey) {
+ hash->setkey = alg->setkey;
++ hash->has_setkey = true;
++ }
+ if (alg->export)
+ hash->export = alg->export;
+ if (alg->import)
+diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c
+index a68b56a368a8..b351127426db 100644
+--- a/crypto/algif_hash.c
++++ b/crypto/algif_hash.c
+@@ -34,6 +34,11 @@ struct hash_ctx {
+ struct ahash_request req;
+ };
+
++struct algif_hash_tfm {
++ struct crypto_ahash *hash;
++ bool has_key;
++};
++
+ static int hash_sendmsg(struct kiocb *unused, struct socket *sock,
+ struct msghdr *msg, size_t ignored)
+ {
+@@ -51,7 +56,8 @@ static int hash_sendmsg(struct kiocb *unused, struct socket *sock,
+
+ lock_sock(sk);
+ if (!ctx->more) {
+- err = crypto_ahash_init(&ctx->req);
++ err = af_alg_wait_for_completion(crypto_ahash_init(&ctx->req),
++ &ctx->completion);
+ if (err)
+ goto unlock;
+ }
+@@ -131,6 +137,7 @@ static ssize_t hash_sendpage(struct socket *sock, struct page *page,
+ } else {
+ if (!ctx->more) {
+ err = crypto_ahash_init(&ctx->req);
++ err = af_alg_wait_for_completion(err, &ctx->completion);
+ if (err)
+ goto unlock;
+ }
+@@ -246,22 +253,151 @@ static struct proto_ops algif_hash_ops = {
+ .accept = hash_accept,
+ };
+
++static int hash_check_key(struct socket *sock)
++{
++ int err;
++ struct sock *psk;
++ struct alg_sock *pask;
++ struct algif_hash_tfm *tfm;
++ struct sock *sk = sock->sk;
++ struct alg_sock *ask = alg_sk(sk);
++
++ if (ask->refcnt)
++ return 0;
++
++ psk = ask->parent;
++ pask = alg_sk(ask->parent);
++ tfm = pask->private;
++
++ err = -ENOKEY;
++ lock_sock(psk);
++ if (!tfm->has_key)
++ goto unlock;
++
++ if (!pask->refcnt++)
++ sock_hold(psk);
++
++ ask->refcnt = 1;
++ sock_put(psk);
++
++ err = 0;
++
++unlock:
++ release_sock(psk);
++
++ return err;
++}
++
++static int hash_sendmsg_nokey(struct kiocb *unused, struct socket *sock,
++ struct msghdr *msg, size_t size)
++{
++ int err;
++
++ err = hash_check_key(sock);
++ if (err)
++ return err;
++
++ return hash_sendmsg(NULL, sock, msg, size);
++}
++
++static ssize_t hash_sendpage_nokey(struct socket *sock, struct page *page,
++ int offset, size_t size, int flags)
++{
++ int err;
++
++ err = hash_check_key(sock);
++ if (err)
++ return err;
++
++ return hash_sendpage(sock, page, offset, size, flags);
++}
++
++static int hash_recvmsg_nokey(struct kiocb *unused, struct socket *sock,
++ struct msghdr *msg, size_t ignored, int flags)
++{
++ int err;
++
++ err = hash_check_key(sock);
++ if (err)
++ return err;
++
++ return hash_recvmsg(NULL, sock, msg, ignored, flags);
++}
++
++static int hash_accept_nokey(struct socket *sock, struct socket *newsock,
++ int flags)
++{
++ int err;
++
++ err = hash_check_key(sock);
++ if (err)
++ return err;
++
++ return hash_accept(sock, newsock, flags);
++}
++
++static struct proto_ops algif_hash_ops_nokey = {
++ .family = PF_ALG,
++
++ .connect = sock_no_connect,
++ .socketpair = sock_no_socketpair,
++ .getname = sock_no_getname,
++ .ioctl = sock_no_ioctl,
++ .listen = sock_no_listen,
++ .shutdown = sock_no_shutdown,
++ .getsockopt = sock_no_getsockopt,
++ .mmap = sock_no_mmap,
++ .bind = sock_no_bind,
++ .setsockopt = sock_no_setsockopt,
++ .poll = sock_no_poll,
++
++ .release = af_alg_release,
++ .sendmsg = hash_sendmsg_nokey,
++ .sendpage = hash_sendpage_nokey,
++ .recvmsg = hash_recvmsg_nokey,
++ .accept = hash_accept_nokey,
++};
++
+ static void *hash_bind(const char *name, u32 type, u32 mask)
+ {
+- return crypto_alloc_ahash(name, type, mask);
++ struct algif_hash_tfm *tfm;
++ struct crypto_ahash *hash;
++
++ tfm = kzalloc(sizeof(*tfm), GFP_KERNEL);
++ if (!tfm)
++ return ERR_PTR(-ENOMEM);
++
++ hash = crypto_alloc_ahash(name, type, mask);
++ if (IS_ERR(hash)) {
++ kfree(tfm);
++ return ERR_CAST(hash);
++ }
++
++ tfm->hash = hash;
++
++ return tfm;
+ }
+
+ static void hash_release(void *private)
+ {
+- crypto_free_ahash(private);
++ struct algif_hash_tfm *tfm = private;
++
++ crypto_free_ahash(tfm->hash);
++ kfree(tfm);
+ }
+
+ static int hash_setkey(void *private, const u8 *key, unsigned int keylen)
+ {
+- return crypto_ahash_setkey(private, key, keylen);
++ struct algif_hash_tfm *tfm = private;
++ int err;
++
++ err = crypto_ahash_setkey(tfm->hash, key, keylen);
++ tfm->has_key = !err;
++
++ return err;
+ }
+
+-static void hash_sock_destruct(struct sock *sk)
++static void hash_sock_destruct_common(struct sock *sk)
+ {
+ struct alg_sock *ask = alg_sk(sk);
+ struct hash_ctx *ctx = ask->private;
+@@ -269,15 +405,40 @@ static void hash_sock_destruct(struct sock *sk)
+ sock_kfree_s(sk, ctx->result,
+ crypto_ahash_digestsize(crypto_ahash_reqtfm(&ctx->req)));
+ sock_kfree_s(sk, ctx, ctx->len);
++}
++
++static void hash_sock_destruct(struct sock *sk)
++{
++ hash_sock_destruct_common(sk);
+ af_alg_release_parent(sk);
+ }
+
+-static int hash_accept_parent(void *private, struct sock *sk)
++static void hash_release_parent_nokey(struct sock *sk)
++{
++ struct alg_sock *ask = alg_sk(sk);
++
++ if (!ask->refcnt) {
++ sock_put(ask->parent);
++ return;
++ }
++
++ af_alg_release_parent(sk);
++}
++
++static void hash_sock_destruct_nokey(struct sock *sk)
++{
++ hash_sock_destruct_common(sk);
++ hash_release_parent_nokey(sk);
++}
++
++static int hash_accept_parent_common(void *private, struct sock *sk)
+ {
+ struct hash_ctx *ctx;
+ struct alg_sock *ask = alg_sk(sk);
+- unsigned len = sizeof(*ctx) + crypto_ahash_reqsize(private);
+- unsigned ds = crypto_ahash_digestsize(private);
++ struct algif_hash_tfm *tfm = private;
++ struct crypto_ahash *hash = tfm->hash;
++ unsigned len = sizeof(*ctx) + crypto_ahash_reqsize(hash);
++ unsigned ds = crypto_ahash_digestsize(hash);
+
+ ctx = sock_kmalloc(sk, len, GFP_KERNEL);
+ if (!ctx)
+@@ -297,7 +458,7 @@ static int hash_accept_parent(void *private, struct sock *sk)
+
+ ask->private = ctx;
+
+- ahash_request_set_tfm(&ctx->req, private);
++ ahash_request_set_tfm(&ctx->req, hash);
+ ahash_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_BACKLOG,
+ af_alg_complete, &ctx->completion);
+
+@@ -306,12 +467,38 @@ static int hash_accept_parent(void *private, struct sock *sk)
+ return 0;
+ }
+
++static int hash_accept_parent(void *private, struct sock *sk)
++{
++ struct algif_hash_tfm *tfm = private;
++
++ if (!tfm->has_key && crypto_ahash_has_setkey(tfm->hash))
++ return -ENOKEY;
++
++ return hash_accept_parent_common(private, sk);
++}
++
++static int hash_accept_parent_nokey(void *private, struct sock *sk)
++{
++ int err;
++
++ err = hash_accept_parent_common(private, sk);
++ if (err)
++ goto out;
++
++ sk->sk_destruct = hash_sock_destruct_nokey;
++
++out:
++ return err;
++}
++
+ static const struct af_alg_type algif_type_hash = {
+ .bind = hash_bind,
+ .release = hash_release,
+ .setkey = hash_setkey,
+ .accept = hash_accept_parent,
++ .accept_nokey = hash_accept_parent_nokey,
+ .ops = &algif_hash_ops,
++ .ops_nokey = &algif_hash_ops_nokey,
+ .name = "hash",
+ .owner = THIS_MODULE
+ };
+diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
+index 83187f497c7c..4456ec8c94a1 100644
+--- a/crypto/algif_skcipher.c
++++ b/crypto/algif_skcipher.c
+@@ -31,6 +31,11 @@ struct skcipher_sg_list {
+ struct scatterlist sg[0];
+ };
+
++struct skcipher_tfm {
++ struct crypto_ablkcipher *skcipher;
++ bool has_key;
++};
++
+ struct skcipher_ctx {
+ struct list_head tsgl;
+ struct af_alg_sgl rsgl;
+@@ -544,22 +549,139 @@ static struct proto_ops algif_skcipher_ops = {
+ .poll = skcipher_poll,
+ };
+
++static int skcipher_check_key(struct socket *sock)
++{
++ int err;
++ struct sock *psk;
++ struct alg_sock *pask;
++ struct skcipher_tfm *tfm;
++ struct sock *sk = sock->sk;
++ struct alg_sock *ask = alg_sk(sk);
++
++ if (ask->refcnt)
++ return 0;
++
++ psk = ask->parent;
++ pask = alg_sk(ask->parent);
++ tfm = pask->private;
++
++ err = -ENOKEY;
++ lock_sock(psk);
++ if (!tfm->has_key)
++ goto unlock;
++
++ if (!pask->refcnt++)
++ sock_hold(psk);
++
++ ask->refcnt = 1;
++ sock_put(psk);
++
++ err = 0;
++
++unlock:
++ release_sock(psk);
++
++ return err;
++}
++
++static int skcipher_sendmsg_nokey(struct kiocb *unused, struct socket *sock,
++ struct msghdr *msg, size_t size)
++{
++ int err;
++
++ err = skcipher_check_key(sock);
++ if (err)
++ return err;
++
++ return skcipher_sendmsg(NULL, sock, msg, size);
++}
++
++static ssize_t skcipher_sendpage_nokey(struct socket *sock, struct page *page,
++ int offset, size_t size, int flags)
++{
++ int err;
++
++ err = skcipher_check_key(sock);
++ if (err)
++ return err;
++
++ return skcipher_sendpage(sock, page, offset, size, flags);
++}
++
++static int skcipher_recvmsg_nokey(struct kiocb *unused, struct socket *sock,
++ struct msghdr *msg, size_t ignored, int flags)
++{
++ int err;
++
++ err = skcipher_check_key(sock);
++ if (err)
++ return err;
++
++ return skcipher_recvmsg(NULL, sock, msg, ignored, flags);
++}
++
++static struct proto_ops algif_skcipher_ops_nokey = {
++ .family = PF_ALG,
++
++ .connect = sock_no_connect,
++ .socketpair = sock_no_socketpair,
++ .getname = sock_no_getname,
++ .ioctl = sock_no_ioctl,
++ .listen = sock_no_listen,
++ .shutdown = sock_no_shutdown,
++ .getsockopt = sock_no_getsockopt,
++ .mmap = sock_no_mmap,
++ .bind = sock_no_bind,
++ .accept = sock_no_accept,
++ .setsockopt = sock_no_setsockopt,
++
++ .release = af_alg_release,
++ .sendmsg = skcipher_sendmsg_nokey,
++ .sendpage = skcipher_sendpage_nokey,
++ .recvmsg = skcipher_recvmsg_nokey,
++ .poll = skcipher_poll,
++};
++
+ static void *skcipher_bind(const char *name, u32 type, u32 mask)
+ {
+- return crypto_alloc_ablkcipher(name, type, mask);
++ struct skcipher_tfm *tfm;
++ struct crypto_ablkcipher *skcipher;
++
++ tfm = kzalloc(sizeof(*tfm), GFP_KERNEL);
++ if (!tfm)
++ return ERR_PTR(-ENOMEM);
++
++ skcipher = crypto_alloc_ablkcipher(name, type, mask);
++ if (IS_ERR(skcipher)) {
++ kfree(tfm);
++ return ERR_CAST(skcipher);
++ }
++
++ tfm->skcipher = skcipher;
++
++ return tfm;
+ }
+
+ static void skcipher_release(void *private)
+ {
+- crypto_free_ablkcipher(private);
++ struct skcipher_tfm *tfm = private;
++
++ crypto_free_ablkcipher(tfm->skcipher);
++ kfree(tfm);
+ }
+
+ static int skcipher_setkey(void *private, const u8 *key, unsigned int keylen)
+ {
+- return crypto_ablkcipher_setkey(private, key, keylen);
++ struct skcipher_tfm *tfm = private;
++ int err;
++
++ err = crypto_ablkcipher_setkey(tfm->skcipher, key, keylen);
++ tfm->has_key = !err;
++
++ return err;
+ }
+
+-static void skcipher_sock_destruct(struct sock *sk)
++static void skcipher_sock_destruct_common(struct sock *sk)
+ {
+ struct alg_sock *ask = alg_sk(sk);
+ struct skcipher_ctx *ctx = ask->private;
+@@ -568,27 +690,52 @@ static void skcipher_sock_destruct(struct sock *sk)
+ skcipher_free_sgl(sk);
+ sock_kfree_s(sk, ctx->iv, crypto_ablkcipher_ivsize(tfm));
+ sock_kfree_s(sk, ctx, ctx->len);
++}
++
++static void skcipher_sock_destruct(struct sock *sk)
++{
++ skcipher_sock_destruct_common(sk);
+ af_alg_release_parent(sk);
+ }
+
+-static int skcipher_accept_parent(void *private, struct sock *sk)
++static void skcipher_release_parent_nokey(struct sock *sk)
++{
++ struct alg_sock *ask = alg_sk(sk);
++
++ if (!ask->refcnt) {
++ sock_put(ask->parent);
++ return;
++ }
++
++ af_alg_release_parent(sk);
++}
++
++static void skcipher_sock_destruct_nokey(struct sock *sk)
++{
++ skcipher_sock_destruct_common(sk);
++ skcipher_release_parent_nokey(sk);
++}
++
++static int skcipher_accept_parent_common(void *private, struct sock *sk)
+ {
+ struct skcipher_ctx *ctx;
+ struct alg_sock *ask = alg_sk(sk);
+- unsigned int len = sizeof(*ctx) + crypto_ablkcipher_reqsize(private);
++ struct skcipher_tfm *tfm = private;
++ struct crypto_ablkcipher *skcipher = tfm->skcipher;
++ unsigned int len = sizeof(*ctx) + crypto_ablkcipher_reqsize(skcipher);
+
+ ctx = sock_kmalloc(sk, len, GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+- ctx->iv = sock_kmalloc(sk, crypto_ablkcipher_ivsize(private),
++ ctx->iv = sock_kmalloc(sk, crypto_ablkcipher_ivsize(skcipher),
+ GFP_KERNEL);
+ if (!ctx->iv) {
+ sock_kfree_s(sk, ctx, len);
+ return -ENOMEM;
+ }
+
+- memset(ctx->iv, 0, crypto_ablkcipher_ivsize(private));
++ memset(ctx->iv, 0, crypto_ablkcipher_ivsize(skcipher));
+
+ INIT_LIST_HEAD(&ctx->tsgl);
+ ctx->len = len;
+@@ -600,7 +747,7 @@ static int skcipher_accept_parent(void *private, struct sock *sk)
+
+ ask->private = ctx;
+
+- ablkcipher_request_set_tfm(&ctx->req, private);
++ ablkcipher_request_set_tfm(&ctx->req, skcipher);
+ ablkcipher_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_BACKLOG,
+ af_alg_complete, &ctx->completion);
+
+@@ -609,12 +756,38 @@ static int skcipher_accept_parent(void *private, struct sock *sk)
+ return 0;
+ }
+
++static int skcipher_accept_parent(void *private, struct sock *sk)
++{
++ struct skcipher_tfm *tfm = private;
++
++ if (!tfm->has_key)
++ return -ENOKEY;
++
++ return skcipher_accept_parent_common(private, sk);
++}
++
++static int skcipher_accept_parent_nokey(void *private, struct sock *sk)
++{
++ int err;
++
++ err = skcipher_accept_parent_common(private, sk);
++ if (err)
++ goto out;
++
++ sk->sk_destruct = skcipher_sock_destruct_nokey;
++
++out:
++ return err;
++}
++
+ static const struct af_alg_type algif_type_skcipher = {
+ .bind = skcipher_bind,
+ .release = skcipher_release,
+ .setkey = skcipher_setkey,
+ .accept = skcipher_accept_parent,
++ .accept_nokey = skcipher_accept_parent_nokey,
+ .ops = &algif_skcipher_ops,
++ .ops_nokey = &algif_skcipher_ops_nokey,
+ .name = "skcipher",
+ .owner = THIS_MODULE
+ };
+diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c
+index c7666f401381..a3dfc0d83107 100644
+--- a/crypto/crypto_user.c
++++ b/crypto/crypto_user.c
+@@ -477,6 +477,7 @@ static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
+ if (link->dump == NULL)
+ return -EINVAL;
+
++ down_read(&crypto_alg_sem);
+ list_for_each_entry(alg, &crypto_alg_list, cra_list)
+ dump_alloc += CRYPTO_REPORT_MAXSIZE;
+
+@@ -486,8 +487,11 @@ static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
+ .done = link->done,
+ .min_dump_alloc = dump_alloc,
+ };
+- return netlink_dump_start(crypto_nlsk, skb, nlh, &c);
++ err = netlink_dump_start(crypto_nlsk, skb, nlh, &c);
+ }
++ up_read(&crypto_alg_sem);
++
++ return err;
+ }
+
+ err = nlmsg_parse(nlh, crypto_msg_min[type], attrs, CRYPTOCFGA_MAX,
+diff --git a/crypto/shash.c b/crypto/shash.c
+index 929058a68561..8e4256aae963 100644
+--- a/crypto/shash.c
++++ b/crypto/shash.c
+@@ -354,8 +354,10 @@ int crypto_init_shash_ops_async(struct crypto_tfm *tfm)
+ crt->finup = shash_async_finup;
+ crt->digest = shash_async_digest;
+
+- if (alg->setkey)
++ if (alg->setkey) {
+ crt->setkey = shash_async_setkey;
++ crt->has_setkey = true;
++ }
+ if (alg->export)
+ crt->export = shash_async_export;
+ if (alg->import)
+diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
+index 5bdf151d321c..eda3eadd5830 100644
+--- a/drivers/ata/ahci.c
++++ b/drivers/ata/ahci.c
+@@ -261,6 +261,26 @@ static const struct pci_device_id ahci_pci_tbl[] = {
+ { PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
+ { PCI_VDEVICE(INTEL, 0x3b2c), board_ahci }, /* PCH RAID */
+ { PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
++ { PCI_VDEVICE(INTEL, 0x19b0), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19b1), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19b2), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19b3), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19b4), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19b5), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19b6), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19b7), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19bE), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19bF), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19c0), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19c1), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19c2), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19c3), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19c4), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19c5), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19c6), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19c7), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19cE), board_ahci }, /* DNV AHCI */
++ { PCI_VDEVICE(INTEL, 0x19cF), board_ahci }, /* DNV AHCI */
+ { PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
+ { PCI_VDEVICE(INTEL, 0x1c03), board_ahci }, /* CPT AHCI */
+ { PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
+diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
+index 07b3f90306fb..a0b449003aea 100644
+--- a/drivers/ata/libahci.c
++++ b/drivers/ata/libahci.c
+@@ -490,8 +490,8 @@ void ahci_save_initial_config(struct device *dev,
+ }
+ }
+
+- /* fabricate port_map from cap.nr_ports */
+- if (!port_map) {
++ /* fabricate port_map from cap.nr_ports for < AHCI 1.3 */
++ if (!port_map && vers < 0x10300) {
+ port_map = (1 << ahci_nr_ports(cap)) - 1;
+ dev_warn(dev, "forcing PORTS_IMPL to 0x%x\n", port_map);
+
+@@ -1259,6 +1259,15 @@ static int ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
+ ata_tf_to_fis(tf, pmp, is_cmd, fis);
+ ahci_fill_cmd_slot(pp, 0, cmd_fis_len | flags | (pmp << 12));
+
++ /* set port value for softreset of Port Multiplier */
++ if (pp->fbs_enabled && pp->fbs_last_dev != pmp) {
++ tmp = readl(port_mmio + PORT_FBS);
++ tmp &= ~(PORT_FBS_DEV_MASK | PORT_FBS_DEC);
++ tmp |= pmp << PORT_FBS_DEV_OFFSET;
++ writel(tmp, port_mmio + PORT_FBS);
++ pp->fbs_last_dev = pmp;
++ }
++
+ /* issue & wait */
+ writel(1, port_mmio + PORT_CMD_ISSUE);
+
+diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c
+index a6524c3efdf7..ce854bbd33ef 100644
+--- a/drivers/char/tpm/tpm_ibmvtpm.c
++++ b/drivers/char/tpm/tpm_ibmvtpm.c
+@@ -529,7 +529,7 @@ static void ibmvtpm_crq_process(struct ibmvtpm_crq *crq,
+ }
+ ibmvtpm->rtce_size = be16_to_cpu(crq->len);
+ ibmvtpm->rtce_buf = kmalloc(ibmvtpm->rtce_size,
+- GFP_KERNEL);
++ GFP_ATOMIC);
+ if (!ibmvtpm->rtce_buf) {
+ dev_err(ibmvtpm->dev, "Failed to allocate memory for rtce buffer\n");
+ return;
+diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c
+index 4dddeabdfbb0..5da07546e182 100644
+--- a/drivers/iio/adc/ad7793.c
++++ b/drivers/iio/adc/ad7793.c
+@@ -101,7 +101,7 @@
+ #define AD7795_CH_AIN1M_AIN1M 8 /* AIN1(-) - AIN1(-) */
+
+ /* ID Register Bit Designations (AD7793_REG_ID) */
+-#define AD7785_ID 0xB
++#define AD7785_ID 0x3
+ #define AD7792_ID 0xA
+ #define AD7793_ID 0xB
+ #define AD7794_ID 0xF
+diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c
+index a3a52be4852c..0793684c1968 100644
+--- a/drivers/iio/dac/ad5064.c
++++ b/drivers/iio/dac/ad5064.c
+@@ -113,12 +113,16 @@ enum ad5064_type {
+ ID_AD5065,
+ ID_AD5628_1,
+ ID_AD5628_2,
++ ID_AD5629_1,
++ ID_AD5629_2,
+ ID_AD5648_1,
+ ID_AD5648_2,
+ ID_AD5666_1,
+ ID_AD5666_2,
+ ID_AD5668_1,
+ ID_AD5668_2,
++ ID_AD5669_1,
++ ID_AD5669_2,
+ };
+
+ static int ad5064_write(struct ad5064_state *st, unsigned int cmd,
+@@ -291,7 +295,7 @@ static const struct iio_chan_spec_ext_info ad5064_ext_info[] = {
+ { },
+ };
+
+-#define AD5064_CHANNEL(chan, addr, bits) { \
++#define AD5064_CHANNEL(chan, addr, bits, _shift) { \
+ .type = IIO_VOLTAGE, \
+ .indexed = 1, \
+ .output = 1, \
+@@ -299,35 +303,38 @@ static const struct iio_chan_spec_ext_info ad5064_ext_info[] = {
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
+ BIT(IIO_CHAN_INFO_SCALE), \
+ .address = addr, \
+- .scan_type = IIO_ST('u', (bits), 16, 20 - (bits)), \
++ .scan_type = IIO_ST('u', (bits), 16, (_shift)), \
+ .ext_info = ad5064_ext_info, \
+ }
+
+-#define DECLARE_AD5064_CHANNELS(name, bits) \
++#define DECLARE_AD5064_CHANNELS(name, bits, shift) \
+ const struct iio_chan_spec name[] = { \
+- AD5064_CHANNEL(0, 0, bits), \
+- AD5064_CHANNEL(1, 1, bits), \
+- AD5064_CHANNEL(2, 2, bits), \
+- AD5064_CHANNEL(3, 3, bits), \
+- AD5064_CHANNEL(4, 4, bits), \
+- AD5064_CHANNEL(5, 5, bits), \
+- AD5064_CHANNEL(6, 6, bits), \
+- AD5064_CHANNEL(7, 7, bits), \
++ AD5064_CHANNEL(0, 0, bits, shift), \
++ AD5064_CHANNEL(1, 1, bits, shift), \
++ AD5064_CHANNEL(2, 2, bits, shift), \
++ AD5064_CHANNEL(3, 3, bits, shift), \
++ AD5064_CHANNEL(4, 4, bits, shift), \
++ AD5064_CHANNEL(5, 5, bits, shift), \
++ AD5064_CHANNEL(6, 6, bits, shift), \
++ AD5064_CHANNEL(7, 7, bits, shift), \
+ }
+
+-#define DECLARE_AD5065_CHANNELS(name, bits) \
++#define DECLARE_AD5065_CHANNELS(name, bits, shift) \
+ const struct iio_chan_spec name[] = { \
+- AD5064_CHANNEL(0, 0, bits), \
+- AD5064_CHANNEL(1, 3, bits), \
++ AD5064_CHANNEL(0, 0, bits, shift), \
++ AD5064_CHANNEL(1, 3, bits, shift), \
+ }
+
+-static DECLARE_AD5064_CHANNELS(ad5024_channels, 12);
+-static DECLARE_AD5064_CHANNELS(ad5044_channels, 14);
+-static DECLARE_AD5064_CHANNELS(ad5064_channels, 16);
++static DECLARE_AD5064_CHANNELS(ad5024_channels, 12, 8);
++static DECLARE_AD5064_CHANNELS(ad5044_channels, 14, 6);
++static DECLARE_AD5064_CHANNELS(ad5064_channels, 16, 4);
+
+-static DECLARE_AD5065_CHANNELS(ad5025_channels, 12);
+-static DECLARE_AD5065_CHANNELS(ad5045_channels, 14);
+-static DECLARE_AD5065_CHANNELS(ad5065_channels, 16);
++static DECLARE_AD5065_CHANNELS(ad5025_channels, 12, 8);
++static DECLARE_AD5065_CHANNELS(ad5045_channels, 14, 6);
++static DECLARE_AD5065_CHANNELS(ad5065_channels, 16, 4);
++
++static DECLARE_AD5064_CHANNELS(ad5629_channels, 12, 4);
++static DECLARE_AD5064_CHANNELS(ad5669_channels, 16, 0);
+
+ static const struct ad5064_chip_info ad5064_chip_info_tbl[] = {
+ [ID_AD5024] = {
+@@ -377,6 +384,18 @@ static const struct ad5064_chip_info ad5064_chip_info_tbl[] = {
+ .channels = ad5024_channels,
+ .num_channels = 8,
+ },
++ [ID_AD5629_1] = {
++ .shared_vref = true,
++ .internal_vref = 2500000,
++ .channels = ad5629_channels,
++ .num_channels = 8,
++ },
++ [ID_AD5629_2] = {
++ .shared_vref = true,
++ .internal_vref = 5000000,
++ .channels = ad5629_channels,
++ .num_channels = 8,
++ },
+ [ID_AD5648_1] = {
+ .shared_vref = true,
+ .internal_vref = 2500000,
+@@ -413,6 +432,18 @@ static const struct ad5064_chip_info ad5064_chip_info_tbl[] = {
+ .channels = ad5064_channels,
+ .num_channels = 8,
+ },
++ [ID_AD5669_1] = {
++ .shared_vref = true,
++ .internal_vref = 2500000,
++ .channels = ad5669_channels,
++ .num_channels = 8,
++ },
++ [ID_AD5669_2] = {
++ .shared_vref = true,
++ .internal_vref = 5000000,
++ .channels = ad5669_channels,
++ .num_channels = 8,
++ },
+ };
+
+ static inline unsigned int ad5064_num_vref(struct ad5064_state *st)
+@@ -593,10 +624,16 @@ static int ad5064_i2c_write(struct ad5064_state *st, unsigned int cmd,
+ unsigned int addr, unsigned int val)
+ {
+ struct i2c_client *i2c = to_i2c_client(st->dev);
++ int ret;
+
+ st->data.i2c[0] = (cmd << 4) | addr;
+ put_unaligned_be16(val, &st->data.i2c[1]);
+- return i2c_master_send(i2c, st->data.i2c, 3);
++
++ ret = i2c_master_send(i2c, st->data.i2c, 3);
++ if (ret < 0)
++ return ret;
++
++ return 0;
+ }
+
+ static int ad5064_i2c_probe(struct i2c_client *i2c,
+@@ -612,12 +649,12 @@ static int ad5064_i2c_remove(struct i2c_client *i2c)
+ }
+
+ static const struct i2c_device_id ad5064_i2c_ids[] = {
+- {"ad5629-1", ID_AD5628_1},
+- {"ad5629-2", ID_AD5628_2},
+- {"ad5629-3", ID_AD5628_2}, /* similar enough to ad5629-2 */
+- {"ad5669-1", ID_AD5668_1},
+- {"ad5669-2", ID_AD5668_2},
+- {"ad5669-3", ID_AD5668_2}, /* similar enough to ad5669-2 */
++ {"ad5629-1", ID_AD5629_1},
++ {"ad5629-2", ID_AD5629_2},
++ {"ad5629-3", ID_AD5629_2}, /* similar enough to ad5629-2 */
++ {"ad5669-1", ID_AD5669_1},
++ {"ad5669-2", ID_AD5669_2},
++ {"ad5669-3", ID_AD5669_2}, /* similar enough to ad5669-2 */
+ {}
+ };
+ MODULE_DEVICE_TABLE(i2c, ad5064_i2c_ids);
+diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c
+index 1397b6e0e414..350ae2b192ca 100644
+--- a/drivers/iio/dac/mcp4725.c
++++ b/drivers/iio/dac/mcp4725.c
+@@ -303,6 +303,7 @@ static int mcp4725_probe(struct i2c_client *client,
+ data->client = client;
+
+ indio_dev->dev.parent = &client->dev;
++ indio_dev->name = id->name;
+ indio_dev->info = &mcp4725_info;
+ indio_dev->channels = &mcp4725_channel;
+ indio_dev->num_channels = 1;
+diff --git a/drivers/iio/imu/adis_buffer.c b/drivers/iio/imu/adis_buffer.c
+index 99d8e0b0dd34..d0538bcdc1b8 100644
+--- a/drivers/iio/imu/adis_buffer.c
++++ b/drivers/iio/imu/adis_buffer.c
+@@ -43,7 +43,7 @@ int adis_update_scan_mode(struct iio_dev *indio_dev,
+ return -ENOMEM;
+
+ rx = adis->buffer;
+- tx = rx + indio_dev->scan_bytes;
++ tx = rx + scan_count;
+
+ spi_message_init(&adis->msg);
+
+diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
+index ae7ac20edf2c..7063c96ddad8 100644
+--- a/drivers/iio/industrialio-buffer.c
++++ b/drivers/iio/industrialio-buffer.c
+@@ -753,7 +753,7 @@ int iio_scan_mask_set(struct iio_dev *indio_dev,
+ if (trialmask == NULL)
+ return -ENOMEM;
+ if (!indio_dev->masklength) {
+- WARN_ON("trying to set scanmask prior to registering buffer\n");
++ WARN(1, "trying to set scanmask prior to registering buffer\n");
+ goto err_invalid_mask;
+ }
+ bitmap_copy(trialmask, buffer->scan_mask, indio_dev->masklength);
+diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
+index f95c6979efd8..da547d1e3e23 100644
+--- a/drivers/iio/industrialio-core.c
++++ b/drivers/iio/industrialio-core.c
+@@ -567,7 +567,7 @@ int __iio_device_attr_init(struct device_attribute *dev_attr,
+ chan->channel2,
+ full_postfix);
+ else {
+- WARN_ON("Differential channels must be indexed\n");
++ WARN(1, "Differential channels must be indexed\n");
+ ret = -EINVAL;
+ goto error_free_full_postfix;
+ }
+diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
+index 65945db35377..cbe20b0099a2 100644
+--- a/drivers/input/mouse/elantech.c
++++ b/drivers/input/mouse/elantech.c
+@@ -1113,7 +1113,7 @@ static int elantech_set_input_params(struct psmouse *psmouse)
+ input_set_abs_params(dev, ABS_TOOL_WIDTH, ETP_WMIN_V2,
+ ETP_WMAX_V2, 0, 0);
+ }
+- input_mt_init_slots(dev, 2, 0);
++ input_mt_init_slots(dev, 2, INPUT_MT_SEMI_MT);
+ input_set_abs_params(dev, ABS_MT_POSITION_X, x_min, x_max, 0, 0);
+ input_set_abs_params(dev, ABS_MT_POSITION_Y, y_min, y_max, 0, 0);
+ break;
+@@ -1419,6 +1419,13 @@ static const struct dmi_system_id no_hw_res_dmi_table[] = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "U2442"),
+ },
+ },
++ {
++ /* Fujitsu LIFEBOOK U745 does not work with crc_enabled == 0 */
++ .matches = {
++ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
++ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U745"),
++ },
++ },
+ #endif
+ { }
+ };
+diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
+index 0254ed97c16e..d9ab5c5e8e82 100644
+--- a/drivers/input/serio/i8042-x86ia64io.h
++++ b/drivers/input/serio/i8042-x86ia64io.h
+@@ -258,6 +258,13 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
+ },
+ },
+ {
++ /* Fujitsu Lifebook U745 */
++ .matches = {
++ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
++ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U745"),
++ },
++ },
++ {
+ /* Fujitsu T70H */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
+index 785675a56a10..ba5d1a37a90d 100644
+--- a/drivers/iommu/dmar.c
++++ b/drivers/iommu/dmar.c
+@@ -972,7 +972,7 @@ void dmar_disable_qi(struct intel_iommu *iommu)
+
+ raw_spin_lock_irqsave(&iommu->register_lock, flags);
+
+- sts = dmar_readq(iommu->reg + DMAR_GSTS_REG);
++ sts = readl(iommu->reg + DMAR_GSTS_REG);
+ if (!(sts & DMA_GSTS_QIES))
+ goto end;
+
+diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
+index b97d70b1abe0..0ff40be0f3b2 100644
+--- a/drivers/iommu/intel_irq_remapping.c
++++ b/drivers/iommu/intel_irq_remapping.c
+@@ -495,7 +495,7 @@ static void iommu_disable_irq_remapping(struct intel_iommu *iommu)
+
+ raw_spin_lock_irqsave(&iommu->register_lock, flags);
+
+- sts = dmar_readq(iommu->reg + DMAR_GSTS_REG);
++ sts = readl(iommu->reg + DMAR_GSTS_REG);
+ if (!(sts & DMA_GSTS_IRES))
+ goto end;
+
+diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
+index 709ce1b2582e..799e479db93b 100644
+--- a/drivers/md/dm-mpath.c
++++ b/drivers/md/dm-mpath.c
+@@ -1623,11 +1623,8 @@ static int multipath_ioctl(struct dm_target *ti, unsigned int cmd,
+ /*
+ * Only pass ioctls through if the device sizes match exactly.
+ */
+- if (!bdev || ti->len != i_size_read(bdev->bd_inode) >> SECTOR_SHIFT) {
+- int err = scsi_verify_blk_ioctl(NULL, cmd);
+- if (err)
+- r = err;
+- }
++ if (!r && ti->len != i_size_read(bdev->bd_inode) >> SECTOR_SHIFT)
++ r = scsi_verify_blk_ioctl(NULL, cmd);
+
+ if (r == -ENOTCONN && !fatal_signal_pending(current))
+ queue_work(kmultipathd, &m->process_queued_ios);
+diff --git a/drivers/media/pci/saa7134/saa7134-alsa.c b/drivers/media/pci/saa7134/saa7134-alsa.c
+index dbcdfbf8aed0..11b0ef3a2858 100644
+--- a/drivers/media/pci/saa7134/saa7134-alsa.c
++++ b/drivers/media/pci/saa7134/saa7134-alsa.c
+@@ -1145,6 +1145,8 @@ static int alsa_device_init(struct saa7134_dev *dev)
+
+ static int alsa_device_exit(struct saa7134_dev *dev)
+ {
++ if (!snd_saa7134_cards[dev->nr])
++ return 1;
+
+ snd_card_free(snd_saa7134_cards[dev->nr]);
+ snd_saa7134_cards[dev->nr] = NULL;
+@@ -1194,7 +1196,8 @@ static void saa7134_alsa_exit(void)
+ int idx;
+
+ for (idx = 0; idx < SNDRV_CARDS; idx++) {
+- snd_card_free(snd_saa7134_cards[idx]);
++ if (snd_saa7134_cards[idx])
++ snd_card_free(snd_saa7134_cards[idx]);
+ }
+
+ saa7134_dmasound_init = NULL;
+diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
+index fca336b65351..2bece37d0228 100644
+--- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
++++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
+@@ -264,7 +264,7 @@ static int put_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_
+
+ struct v4l2_standard32 {
+ __u32 index;
+- __u32 id[2]; /* __u64 would get the alignment wrong */
++ compat_u64 id;
+ __u8 name[24];
+ struct v4l2_fract frameperiod; /* Frames, not fields */
+ __u32 framelines;
+@@ -284,7 +284,7 @@ static int put_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32
+ {
+ if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_standard32)) ||
+ put_user(kp->index, &up->index) ||
+- copy_to_user(up->id, &kp->id, sizeof(__u64)) ||
++ put_user(kp->id, &up->id) ||
+ copy_to_user(up->name, kp->name, 24) ||
+ copy_to_user(&up->frameperiod, &kp->frameperiod, sizeof(kp->frameperiod)) ||
+ put_user(kp->framelines, &up->framelines) ||
+@@ -576,10 +576,10 @@ struct v4l2_input32 {
+ __u32 type; /* Type of input */
+ __u32 audioset; /* Associated audios (bitfield) */
+ __u32 tuner; /* Associated tuner */
+- v4l2_std_id std;
++ compat_u64 std;
+ __u32 status;
+ __u32 reserved[4];
+-} __attribute__ ((packed));
++};
+
+ /* The 64-bit v4l2_input struct has extra padding at the end of the struct.
+ Otherwise it is identical to the 32-bit version. */
+@@ -719,6 +719,7 @@ static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext
+ struct v4l2_event32 {
+ __u32 type;
+ union {
++ compat_s64 value64;
+ __u8 data[64];
+ } u;
+ __u32 pending;
+diff --git a/drivers/media/v4l2-core/videobuf2-dma-contig.c b/drivers/media/v4l2-core/videobuf2-dma-contig.c
+index 646f08f4f504..a833c67df62e 100644
+--- a/drivers/media/v4l2-core/videobuf2-dma-contig.c
++++ b/drivers/media/v4l2-core/videobuf2-dma-contig.c
+@@ -117,7 +117,8 @@ static void vb2_dc_prepare(void *buf_priv)
+ if (!sgt || buf->db_attach)
+ return;
+
+- dma_sync_sg_for_device(buf->dev, sgt->sgl, sgt->nents, buf->dma_dir);
++ dma_sync_sg_for_device(buf->dev, sgt->sgl, sgt->orig_nents,
++ buf->dma_dir);
+ }
+
+ static void vb2_dc_finish(void *buf_priv)
+@@ -129,7 +130,7 @@ static void vb2_dc_finish(void *buf_priv)
+ if (!sgt || buf->db_attach)
+ return;
+
+- dma_sync_sg_for_cpu(buf->dev, sgt->sgl, sgt->nents, buf->dma_dir);
++ dma_sync_sg_for_cpu(buf->dev, sgt->sgl, sgt->orig_nents, buf->dma_dir);
+ }
+
+ /*********************************************/
+diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
+index 6e732c3820c1..51abd85e8a37 100644
+--- a/drivers/mtd/mtdpart.c
++++ b/drivers/mtd/mtdpart.c
+@@ -635,8 +635,10 @@ int add_mtd_partitions(struct mtd_info *master,
+
+ for (i = 0; i < nbparts; i++) {
+ slave = allocate_partition(master, parts + i, i, cur_offset);
+- if (IS_ERR(slave))
++ if (IS_ERR(slave)) {
++ del_mtd_partitions(master);
+ return PTR_ERR(slave);
++ }
+
+ mutex_lock(&mtd_partitions_mutex);
+ list_add(&slave->list, &mtd_partitions);
+diff --git a/drivers/net/wan/x25_asy.c b/drivers/net/wan/x25_asy.c
+index 5895f1978691..e98de425f8e0 100644
+--- a/drivers/net/wan/x25_asy.c
++++ b/drivers/net/wan/x25_asy.c
+@@ -545,16 +545,12 @@ static void x25_asy_receive_buf(struct tty_struct *tty,
+
+ static int x25_asy_open_tty(struct tty_struct *tty)
+ {
+- struct x25_asy *sl = tty->disc_data;
++ struct x25_asy *sl;
+ int err;
+
+ if (tty->ops->write == NULL)
+ return -EOPNOTSUPP;
+
+- /* First make sure we're not already connected. */
+- if (sl && sl->magic == X25_ASY_MAGIC)
+- return -EEXIST;
+-
+ /* OK. Find a free X.25 channel to use. */
+ sl = x25_asy_alloc();
+ if (sl == NULL)
+diff --git a/drivers/net/wireless/ti/wlcore/io.h b/drivers/net/wireless/ti/wlcore/io.h
+index af7d9f9b3b4d..beed58b0c795 100644
+--- a/drivers/net/wireless/ti/wlcore/io.h
++++ b/drivers/net/wireless/ti/wlcore/io.h
+@@ -203,19 +203,23 @@ static inline int __must_check wlcore_write_reg(struct wl1271 *wl, int reg,
+
+ static inline void wl1271_power_off(struct wl1271 *wl)
+ {
+- int ret;
++ int ret = 0;
+
+ if (!test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags))
+ return;
+
+- ret = wl->if_ops->power(wl->dev, false);
++ if (wl->if_ops->power)
++ ret = wl->if_ops->power(wl->dev, false);
+ if (!ret)
+ clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
+ }
+
+ static inline int wl1271_power_on(struct wl1271 *wl)
+ {
+- int ret = wl->if_ops->power(wl->dev, true);
++ int ret = 0;
++
++ if (wl->if_ops->power)
++ ret = wl->if_ops->power(wl->dev, true);
+ if (ret == 0)
+ set_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
+
+diff --git a/drivers/net/wireless/ti/wlcore/spi.c b/drivers/net/wireless/ti/wlcore/spi.c
+index 1b0cd98e35f1..5b287b7f96e6 100644
+--- a/drivers/net/wireless/ti/wlcore/spi.c
++++ b/drivers/net/wireless/ti/wlcore/spi.c
+@@ -72,7 +72,10 @@
+ */
+ #define SPI_AGGR_BUFFER_SIZE (4 * PAGE_SIZE)
+
+-#define WSPI_MAX_NUM_OF_CHUNKS (SPI_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE)
++/* Maximum number of SPI write chunks */
++#define WSPI_MAX_NUM_OF_CHUNKS \
++ ((SPI_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE) + 1)
++
+
+ struct wl12xx_spi_glue {
+ struct device *dev;
+@@ -270,9 +273,10 @@ static int __must_check wl12xx_spi_raw_write(struct device *child, int addr,
+ void *buf, size_t len, bool fixed)
+ {
+ struct wl12xx_spi_glue *glue = dev_get_drvdata(child->parent);
+- struct spi_transfer t[2 * (WSPI_MAX_NUM_OF_CHUNKS + 1)];
++ /* SPI write buffers - 2 for each chunk */
++ struct spi_transfer t[2 * WSPI_MAX_NUM_OF_CHUNKS];
+ struct spi_message m;
+- u32 commands[WSPI_MAX_NUM_OF_CHUNKS];
++ u32 commands[WSPI_MAX_NUM_OF_CHUNKS]; /* 1 command per chunk */
+ u32 *cmd;
+ u32 chunk_len;
+ int i;
+diff --git a/drivers/platform/x86/intel_scu_ipcutil.c b/drivers/platform/x86/intel_scu_ipcutil.c
+index 02bc5a6343c3..aa454241489c 100644
+--- a/drivers/platform/x86/intel_scu_ipcutil.c
++++ b/drivers/platform/x86/intel_scu_ipcutil.c
+@@ -49,7 +49,7 @@ struct scu_ipc_data {
+
+ static int scu_reg_access(u32 cmd, struct scu_ipc_data *data)
+ {
+- int count = data->count;
++ unsigned int count = data->count;
+
+ if (count == 0 || count == 3 || count > 4)
+ return -EINVAL;
+diff --git a/drivers/remoteproc/remoteproc_debugfs.c b/drivers/remoteproc/remoteproc_debugfs.c
+index 9d30809bb407..916af5096f57 100644
+--- a/drivers/remoteproc/remoteproc_debugfs.c
++++ b/drivers/remoteproc/remoteproc_debugfs.c
+@@ -156,7 +156,7 @@ rproc_recovery_write(struct file *filp, const char __user *user_buf,
+ char buf[10];
+ int ret;
+
+- if (count > sizeof(buf))
++ if (count < 1 || count > sizeof(buf))
+ return count;
+
+ ret = copy_from_user(buf, user_buf, count);
+diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c
+index 69c915aa77c2..d661fcda1932 100644
+--- a/drivers/scsi/device_handler/scsi_dh_rdac.c
++++ b/drivers/scsi/device_handler/scsi_dh_rdac.c
+@@ -569,7 +569,7 @@ static int mode_select_handle_sense(struct scsi_device *sdev,
+ /*
+ * Command Lock contention
+ */
+- err = SCSI_DH_RETRY;
++ err = SCSI_DH_IMM_RETRY;
+ break;
+ default:
+ break;
+@@ -619,6 +619,8 @@ retry:
+ err = mode_select_handle_sense(sdev, h->sense);
+ if (err == SCSI_DH_RETRY && retry_cnt--)
+ goto retry;
++ if (err == SCSI_DH_IMM_RETRY)
++ goto retry;
+ }
+ if (err == SCSI_DH_OK) {
+ h->state = RDAC_STATE_ACTIVE;
+diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
+index 3cafe0d784b8..3020f1ff4abb 100644
+--- a/drivers/scsi/hosts.c
++++ b/drivers/scsi/hosts.c
+@@ -305,6 +305,17 @@ static void scsi_host_dev_release(struct device *dev)
+ kfree(queuedata);
+ }
+
++ if (shost->shost_state == SHOST_CREATED) {
++ /*
++ * Free the shost_dev device name here if scsi_host_alloc()
++ * and scsi_host_put() have been called but neither
++ * scsi_host_add() nor scsi_host_remove() has been called.
++ * This avoids that the memory allocated for the shost_dev
++ * name is leaked.
++ */
++ kfree(dev_name(&shost->shost_dev));
++ }
++
+ scsi_destroy_command_freelist(shost);
+ if (shost->bqt)
+ blk_free_tags(shost->bqt);
+diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c
+index 262ab837a704..8790e8640acd 100644
+--- a/drivers/scsi/scsi_devinfo.c
++++ b/drivers/scsi/scsi_devinfo.c
+@@ -205,6 +205,7 @@ static struct {
+ {"Intel", "Multi-Flex", NULL, BLIST_NO_RSOC},
+ {"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
+ {"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN},
++ {"Marvell", "Console", NULL, BLIST_SKIP_VPD_PAGES},
+ {"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
+ {"MATSHITA", "DMC-LC5", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
+ {"MATSHITA", "DMC-LC40", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
+diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
+index dfb007c95b98..14ad111b2851 100644
+--- a/drivers/scsi/scsi_sysfs.c
++++ b/drivers/scsi/scsi_sysfs.c
+@@ -829,7 +829,7 @@ sdev_store_queue_ramp_up_period(struct device *dev,
+ return -EINVAL;
+
+ sdev->queue_ramp_up_period = msecs_to_jiffies(period);
+- return period;
++ return count;
+ }
+
+ static struct device_attribute sdev_attr_queue_ramp_up_period =
+@@ -1070,31 +1070,25 @@ static void __scsi_remove_target(struct scsi_target *starget)
+ void scsi_remove_target(struct device *dev)
+ {
+ struct Scsi_Host *shost = dev_to_shost(dev->parent);
+- struct scsi_target *starget, *last = NULL;
++ struct scsi_target *starget, *last_target = NULL;
+ unsigned long flags;
+
+- /* remove targets being careful to lookup next entry before
+- * deleting the last
+- */
++restart:
+ spin_lock_irqsave(shost->host_lock, flags);
+ list_for_each_entry(starget, &shost->__targets, siblings) {
+- if (starget->state == STARGET_DEL)
++ if (starget->state == STARGET_DEL ||
++ starget == last_target)
+ continue;
+ if (starget->dev.parent == dev || &starget->dev == dev) {
+- /* assuming new targets arrive at the end */
+ kref_get(&starget->reap_ref);
++ last_target = starget;
+ spin_unlock_irqrestore(shost->host_lock, flags);
+- if (last)
+- scsi_target_reap(last);
+- last = starget;
+ __scsi_remove_target(starget);
+- spin_lock_irqsave(shost->host_lock, flags);
++ scsi_target_reap(starget);
++ goto restart;
+ }
+ }
+ spin_unlock_irqrestore(shost->host_lock, flags);
+-
+- if (last)
+- scsi_target_reap(last);
+ }
+ EXPORT_SYMBOL(scsi_remove_target);
+
+diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
+index 6e361148911f..f1e3b5398887 100644
+--- a/drivers/scsi/sd.c
++++ b/drivers/scsi/sd.c
+@@ -3102,8 +3102,8 @@ static int sd_suspend(struct device *dev)
+ struct scsi_disk *sdkp = scsi_disk_get_from_dev(dev);
+ int ret = 0;
+
+- if (!sdkp)
+- return 0; /* this can happen */
++ if (!sdkp) /* E.g.: runtime suspend following sd_remove() */
++ return 0;
+
+ if (sdkp->WCE) {
+ sd_printk(KERN_NOTICE, sdkp, "Synchronizing SCSI cache\n");
+@@ -3127,6 +3127,9 @@ static int sd_resume(struct device *dev)
+ struct scsi_disk *sdkp = scsi_disk_get_from_dev(dev);
+ int ret = 0;
+
++ if (!sdkp) /* E.g.: runtime resume at the start of sd_probe() */
++ return 0;
++
+ if (!sdkp->device->manage_start_stop)
+ goto done;
+
+diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
+index 721d839d6c54..0be16bf5f0cd 100644
+--- a/drivers/scsi/sg.c
++++ b/drivers/scsi/sg.c
+@@ -1258,7 +1258,7 @@ sg_mmap(struct file *filp, struct vm_area_struct *vma)
+ }
+
+ sfp->mmap_called = 1;
+- vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
++ vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;
+ vma->vm_private_data = sfp;
+ vma->vm_ops = &sg_mmap_vm_ops;
+ return 0;
+diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
+index 119d67f9c47e..1ac9943cbb93 100644
+--- a/drivers/scsi/sr.c
++++ b/drivers/scsi/sr.c
+@@ -142,6 +142,9 @@ static int sr_runtime_suspend(struct device *dev)
+ {
+ struct scsi_cd *cd = dev_get_drvdata(dev);
+
++ if (!cd) /* E.g.: runtime suspend following sr_remove() */
++ return 0;
++
+ if (cd->media_present)
+ return -EBUSY;
+ else
+@@ -1006,6 +1009,7 @@ static int sr_remove(struct device *dev)
+
+ blk_queue_prep_rq(cd->device->request_queue, scsi_prep_fn);
+ del_gendisk(cd->disk);
++ dev_set_drvdata(dev, NULL);
+
+ mutex_lock(&sr_ref_mutex);
+ kref_put(&cd->kref, sr_kref_release);
+diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
+index d4ac60b4a56e..72d21e87e649 100644
+--- a/drivers/spi/spi-atmel.c
++++ b/drivers/spi/spi-atmel.c
+@@ -606,7 +606,8 @@ static int atmel_spi_next_xfer_dma_submit(struct spi_master *master,
+
+ *plen = len;
+
+- if (atmel_spi_dma_slave_config(as, &slave_config, 8))
++ if (atmel_spi_dma_slave_config(as, &slave_config,
++ xfer->bits_per_word))
+ goto err_exit;
+
+ /* Send both scatterlists */
+diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c
+index e12d962a289f..6d0fb2209ebf 100644
+--- a/drivers/spi/spi-ti-qspi.c
++++ b/drivers/spi/spi-ti-qspi.c
+@@ -385,11 +385,10 @@ static int ti_qspi_start_transfer_one(struct spi_master *master,
+
+ mutex_unlock(&qspi->list_lock);
+
++ ti_qspi_write(qspi, qspi->cmd | QSPI_INVAL, QSPI_SPI_CMD_REG);
+ m->status = status;
+ spi_finalize_current_message(master);
+
+- ti_qspi_write(qspi, qspi->cmd | QSPI_INVAL, QSPI_SPI_CMD_REG);
+-
+ return status;
+ }
+
+diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
+index 5ddda10472c6..1470ee2660c3 100644
+--- a/drivers/spi/spi.c
++++ b/drivers/spi/spi.c
+@@ -1104,7 +1104,7 @@ struct spi_master *spi_alloc_master(struct device *dev, unsigned size)
+ master->bus_num = -1;
+ master->num_chipselect = 1;
+ master->dev.class = &spi_master_class;
+- master->dev.parent = get_device(dev);
++ master->dev.parent = dev;
+ spi_master_set_devdata(master, &master[1]);
+
+ return master;
+diff --git a/drivers/staging/iio/adc/lpc32xx_adc.c b/drivers/staging/iio/adc/lpc32xx_adc.c
+index 9a4bb0999b51..a67f5a056677 100644
+--- a/drivers/staging/iio/adc/lpc32xx_adc.c
++++ b/drivers/staging/iio/adc/lpc32xx_adc.c
+@@ -76,7 +76,7 @@ static int lpc32xx_read_raw(struct iio_dev *indio_dev,
+
+ if (mask == IIO_CHAN_INFO_RAW) {
+ mutex_lock(&indio_dev->mlock);
+- clk_enable(info->clk);
++ clk_prepare_enable(info->clk);
+ /* Measurement setup */
+ __raw_writel(AD_INTERNAL | (chan->address) | AD_REFp | AD_REFm,
+ LPC32XX_ADC_SELECT(info->adc_base));
+@@ -84,7 +84,7 @@ static int lpc32xx_read_raw(struct iio_dev *indio_dev,
+ __raw_writel(AD_PDN_CTRL | AD_STROBE,
+ LPC32XX_ADC_CTRL(info->adc_base));
+ wait_for_completion(&info->completion); /* set by ISR */
+- clk_disable(info->clk);
++ clk_disable_unprepare(info->clk);
+ *val = info->value;
+ mutex_unlock(&indio_dev->mlock);
+
+diff --git a/drivers/staging/speakup/selection.c b/drivers/staging/speakup/selection.c
+index ca04d3669acc..34a6deef1d6c 100644
+--- a/drivers/staging/speakup/selection.c
++++ b/drivers/staging/speakup/selection.c
+@@ -140,7 +140,9 @@ static void __speakup_paste_selection(struct work_struct *work)
+ struct tty_ldisc *ld;
+ DECLARE_WAITQUEUE(wait, current);
+
+- ld = tty_ldisc_ref_wait(tty);
++ ld = tty_ldisc_ref(tty);
++ if (!ld)
++ goto tty_unref;
+ tty_buffer_lock_exclusive(&vc->port);
+
+ add_wait_queue(&vc->paste_wait, &wait);
+@@ -160,6 +162,7 @@ static void __speakup_paste_selection(struct work_struct *work)
+
+ tty_buffer_unlock_exclusive(&vc->port);
+ tty_ldisc_deref(ld);
++tty_unref:
+ tty_kref_put(tty);
+ }
+
+diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
+index 6f3aa50699f1..9bf13531029e 100644
+--- a/drivers/target/iscsi/iscsi_target.c
++++ b/drivers/target/iscsi/iscsi_target.c
+@@ -4023,6 +4023,17 @@ reject:
+ return iscsit_add_reject(conn, ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
+ }
+
++static bool iscsi_target_check_conn_state(struct iscsi_conn *conn)
++{
++ bool ret;
++
++ spin_lock_bh(&conn->state_lock);
++ ret = (conn->conn_state != TARG_CONN_STATE_LOGGED_IN);
++ spin_unlock_bh(&conn->state_lock);
++
++ return ret;
++}
++
+ int iscsi_target_rx_thread(void *arg)
+ {
+ int ret, rc;
+@@ -4040,7 +4051,7 @@ int iscsi_target_rx_thread(void *arg)
+ * incoming iscsi/tcp socket I/O, and/or failing the connection.
+ */
+ rc = wait_for_completion_interruptible(&conn->rx_login_comp);
+- if (rc < 0)
++ if (rc < 0 || iscsi_target_check_conn_state(conn))
+ return 0;
+
+ if (conn->conn_transport->transport_type == ISCSI_INFINIBAND) {
+diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
+index 8a1bd1af414b..dcebe96d2b23 100644
+--- a/drivers/target/iscsi/iscsi_target_configfs.c
++++ b/drivers/target/iscsi/iscsi_target_configfs.c
+@@ -1863,7 +1863,8 @@ static void lio_tpg_release_fabric_acl(
+ }
+
+ /*
+- * Called with spin_lock_bh(struct se_portal_group->session_lock) held..
++ * Called with spin_lock_irq(struct se_portal_group->session_lock) held
++ * or not held.
+ *
+ * Also, this function calls iscsit_inc_session_usage_count() on the
+ * struct iscsi_session in question.
+@@ -1871,19 +1872,32 @@ static void lio_tpg_release_fabric_acl(
+ static int lio_tpg_shutdown_session(struct se_session *se_sess)
+ {
+ struct iscsi_session *sess = se_sess->fabric_sess_ptr;
++ struct se_portal_group *se_tpg = se_sess->se_tpg;
++ bool local_lock = false;
++
++ if (!spin_is_locked(&se_tpg->session_lock)) {
++ spin_lock_irq(&se_tpg->session_lock);
++ local_lock = true;
++ }
+
+ spin_lock(&sess->conn_lock);
+ if (atomic_read(&sess->session_fall_back_to_erl0) ||
+ atomic_read(&sess->session_logout) ||
+ (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) {
+ spin_unlock(&sess->conn_lock);
++ if (local_lock)
++ spin_unlock_irq(&sess->conn_lock);
+ return 0;
+ }
+ atomic_set(&sess->session_reinstatement, 1);
+ spin_unlock(&sess->conn_lock);
+
+ iscsit_stop_time2retain_timer(sess);
++ spin_unlock_irq(&se_tpg->session_lock);
++
+ iscsit_stop_session(sess, 1, 1);
++ if (!local_lock)
++ spin_lock_irq(&se_tpg->session_lock);
+
+ return 1;
+ }
+diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c
+index a801cad91742..956fc40df3ff 100644
+--- a/drivers/target/iscsi/iscsi_target_nego.c
++++ b/drivers/target/iscsi/iscsi_target_nego.c
+@@ -393,6 +393,7 @@ err:
+ if (login->login_complete) {
+ if (conn->rx_thread && conn->rx_thread_active) {
+ send_sig(SIGINT, conn->rx_thread, 1);
++ complete(&conn->rx_login_comp);
+ kthread_stop(conn->rx_thread);
+ }
+ if (conn->tx_thread && conn->tx_thread_active) {
+diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
+index e49616eeb1cc..c3f9b9920d8d 100644
+--- a/drivers/tty/pty.c
++++ b/drivers/tty/pty.c
+@@ -617,7 +617,14 @@ static void pty_unix98_remove(struct tty_driver *driver, struct tty_struct *tty)
+ /* this is called once with whichever end is closed last */
+ static void pty_unix98_shutdown(struct tty_struct *tty)
+ {
+- devpts_kill_index(tty->driver_data, tty->index);
++ struct inode *ptmx_inode;
++
++ if (tty->driver->subtype == PTY_TYPE_MASTER)
++ ptmx_inode = tty->driver_data;
++ else
++ ptmx_inode = tty->link->driver_data;
++ devpts_kill_index(ptmx_inode, tty->index);
++ devpts_del_ref(ptmx_inode);
+ }
+
+ static const struct tty_operations ptm_unix98_ops = {
+@@ -708,6 +715,18 @@ static int ptmx_open(struct inode *inode, struct file *filp)
+ set_bit(TTY_PTY_LOCK, &tty->flags); /* LOCK THE SLAVE */
+ tty->driver_data = inode;
+
++ /*
++ * In the case where all references to ptmx inode are dropped and we
++ * still have /dev/tty opened pointing to the master/slave pair (ptmx
++ * is closed/released before /dev/tty), we must make sure that the inode
++ * is still valid when we call the final pty_unix98_shutdown, thus we
++ * hold an additional reference to the ptmx inode. For the same /dev/tty
++ * last close case, we also need to make sure the super_block isn't
++ * destroyed (devpts instance unmounted), before /dev/tty is closed and
++ * on its release devpts_kill_index is called.
++ */
++ devpts_add_ref(inode);
++
+ tty_add_file(tty, filp);
+
+ slave_inode = devpts_pty_new(inode,
+diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
+index ebb823cc9140..3299168189cc 100644
+--- a/drivers/tty/serial/8250/8250_pci.c
++++ b/drivers/tty/serial/8250/8250_pci.c
+@@ -1414,6 +1414,9 @@ static int pci_eg20t_init(struct pci_dev *dev)
+ #endif
+ }
+
++#define PCI_DEVICE_ID_EXAR_XR17V4358 0x4358
++#define PCI_DEVICE_ID_EXAR_XR17V8358 0x8358
++
+ static int
+ pci_xr17c154_setup(struct serial_private *priv,
+ const struct pciserial_board *board,
+@@ -1423,6 +1426,15 @@ pci_xr17c154_setup(struct serial_private *priv,
+ return pci_default_setup(priv, board, port, idx);
+ }
+
++static inline int
++xr17v35x_has_slave(struct serial_private *priv)
++{
++ const int dev_id = priv->dev->device;
++
++ return ((dev_id == PCI_DEVICE_ID_EXAR_XR17V4358) ||
++ (dev_id == PCI_DEVICE_ID_EXAR_XR17V8358));
++}
++
+ static int
+ pci_xr17v35x_setup(struct serial_private *priv,
+ const struct pciserial_board *board,
+@@ -1481,6 +1493,13 @@ pci_fastcom335_setup(struct serial_private *priv,
+ port->port.flags |= UPF_EXAR_EFR;
+
+ /*
++ * Setup the uart clock for the devices on expansion slot to
++ * half the clock speed of the main chip (which is 125MHz)
++ */
++ if (xr17v35x_has_slave(priv) && idx >= 8)
++ port->port.uartclk = (7812500 * 16 / 2);
++
++ /*
+ * Setup Multipurpose Input/Output pins.
+ */
+ if (idx == 0) {
+@@ -1574,9 +1593,6 @@ pci_wch_ch353_setup(struct serial_private *priv,
+ #define PCI_DEVICE_ID_SUNIX_1999 0x1999
+
+
+-#define PCI_DEVICE_ID_EXAR_XR17V4358 0x4358
+-#define PCI_DEVICE_ID_EXAR_XR17V8358 0x8358
+-
+ /* Unknown vendors/cards - this should not be in linux/pci_ids.h */
+ #define PCI_SUBDEVICE_ID_UNKNOWN_0x1584 0x1584
+ #define PCI_SUBDEVICE_ID_UNKNOWN_0x1588 0x1588
+diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
+index 40a9fe9d3b10..3b9b80856c1b 100644
+--- a/drivers/tty/sysrq.c
++++ b/drivers/tty/sysrq.c
+@@ -54,9 +54,6 @@
+ static int __read_mostly sysrq_enabled = SYSRQ_DEFAULT_ENABLE;
+ static bool __read_mostly sysrq_always_enabled;
+
+-unsigned short platform_sysrq_reset_seq[] __weak = { KEY_RESERVED };
+-int sysrq_reset_downtime_ms __weak;
+-
+ static bool sysrq_on(void)
+ {
+ return sysrq_enabled || sysrq_always_enabled;
+@@ -565,6 +562,7 @@ void handle_sysrq(int key)
+ EXPORT_SYMBOL(handle_sysrq);
+
+ #ifdef CONFIG_INPUT
++static int sysrq_reset_downtime_ms;
+
+ /* Simple translation table for the SysRq keys */
+ static const unsigned char sysrq_xlate[KEY_CNT] =
+@@ -945,23 +943,8 @@ static bool sysrq_handler_registered;
+
+ static inline void sysrq_register_handler(void)
+ {
+- unsigned short key;
+ int error;
+- int i;
+-
+- /* First check if a __weak interface was instantiated. */
+- for (i = 0; i < ARRAY_SIZE(sysrq_reset_seq); i++) {
+- key = platform_sysrq_reset_seq[i];
+- if (key == KEY_RESERVED || key > KEY_MAX)
+- break;
+-
+- sysrq_reset_seq[sysrq_reset_seq_len++] = key;
+- }
+
+- /*
+- * DT configuration takes precedence over anything that would
+- * have been defined via the __weak interface.
+- */
+ sysrq_of_get_keyreset_config();
+
+ error = input_register_handler(&sysrq_handler);
+diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c
+index d9d216eb7db9..df889361a491 100644
+--- a/drivers/tty/tty_buffer.c
++++ b/drivers/tty/tty_buffer.c
+@@ -416,7 +416,7 @@ receive_buf(struct tty_struct *tty, struct tty_buffer *head, int count)
+ count = disc->ops->receive_buf2(tty, p, f, count);
+ else {
+ count = min_t(int, count, tty->receive_room);
+- if (count)
++ if (count && disc->ops->receive_buf)
+ disc->ops->receive_buf(tty, p, f, count);
+ }
+ head->read += count;
+diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
+index 39988fa91294..b17df1000250 100644
+--- a/drivers/tty/tty_io.c
++++ b/drivers/tty/tty_io.c
+@@ -2581,6 +2581,28 @@ static int tiocsetd(struct tty_struct *tty, int __user *p)
+ }
+
+ /**
++ * tiocgetd - get line discipline
++ * @tty: tty device
++ * @p: pointer to user data
++ *
++ * Retrieves the line discipline id directly from the ldisc.
++ *
++ * Locking: waits for ldisc reference (in case the line discipline
++ * is changing or the tty is being hungup)
++ */
++
++static int tiocgetd(struct tty_struct *tty, int __user *p)
++{
++ struct tty_ldisc *ld;
++ int ret;
++
++ ld = tty_ldisc_ref_wait(tty);
++ ret = put_user(ld->ops->num, p);
++ tty_ldisc_deref(ld);
++ return ret;
++}
++
++/**
+ * send_break - performed time break
+ * @tty: device to break on
+ * @duration: timeout in mS
+@@ -2794,7 +2816,7 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+ case TIOCGSID:
+ return tiocgsid(tty, real_tty, p);
+ case TIOCGETD:
+- return put_user(tty->ldisc->ops->num, (int __user *)p);
++ return tiocgetd(tty, p);
+ case TIOCSETD:
+ return tiocsetd(tty, p);
+ case TIOCVHANGUP:
+diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
+index 55b3aa33bc06..66a7641dfff1 100644
+--- a/drivers/usb/host/xhci-hub.c
++++ b/drivers/usb/host/xhci-hub.c
+@@ -611,8 +611,30 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
+ if ((raw_port_status & PORT_RESET) ||
+ !(raw_port_status & PORT_PE))
+ return 0xffffffff;
+- if (time_after_eq(jiffies,
+- bus_state->resume_done[wIndex])) {
++ /* did port event handler already start resume timing? */
++ if (!bus_state->resume_done[wIndex]) {
++ /* If not, maybe we are in a host initated resume? */
++ if (test_bit(wIndex, &bus_state->resuming_ports)) {
++ /* Host initated resume doesn't time the resume
++ * signalling using resume_done[].
++ * It manually sets RESUME state, sleeps 20ms
++ * and sets U0 state. This should probably be
++ * changed, but not right now.
++ */
++ } else {
++ /* port resume was discovered now and here,
++ * start resume timing
++ */
++ unsigned long timeout = jiffies +
++ msecs_to_jiffies(USB_RESUME_TIMEOUT);
++
++ set_bit(wIndex, &bus_state->resuming_ports);
++ bus_state->resume_done[wIndex] = timeout;
++ mod_timer(&hcd->rh_timer, timeout);
++ }
++ /* Has resume been signalled for USB_RESUME_TIME yet? */
++ } else if (time_after_eq(jiffies,
++ bus_state->resume_done[wIndex])) {
+ int time_left;
+
+ xhci_dbg(xhci, "Resume USB2 port %d\n",
+@@ -654,13 +676,24 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
+ } else {
+ /*
+ * The resume has been signaling for less than
+- * 20ms. Report the port status as SUSPEND,
+- * let the usbcore check port status again
+- * and clear resume signaling later.
++ * USB_RESUME_TIME. Report the port status as SUSPEND,
++ * let the usbcore check port status again and clear
++ * resume signaling later.
+ */
+ status |= USB_PORT_STAT_SUSPEND;
+ }
+ }
++ /*
++ * Clear stale usb2 resume signalling variables in case port changed
++ * state during resume signalling. For example on error
++ */
++ if ((bus_state->resume_done[wIndex] ||
++ test_bit(wIndex, &bus_state->resuming_ports)) &&
++ (raw_port_status & PORT_PLS_MASK) != XDEV_U3 &&
++ (raw_port_status & PORT_PLS_MASK) != XDEV_RESUME) {
++ bus_state->resume_done[wIndex] = 0;
++ clear_bit(wIndex, &bus_state->resuming_ports);
++ }
+ if ((raw_port_status & PORT_PLS_MASK) == XDEV_U0
+ && (raw_port_status & PORT_POWER)
+ && (bus_state->suspended_ports & (1 << wIndex))) {
+@@ -991,6 +1024,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
+ if ((temp & PORT_PE) == 0)
+ goto error;
+
++ set_bit(wIndex, &bus_state->resuming_ports);
+ xhci_set_link_state(xhci, port_array, wIndex,
+ XDEV_RESUME);
+ spin_unlock_irqrestore(&xhci->lock, flags);
+@@ -998,6 +1032,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
+ spin_lock_irqsave(&xhci->lock, flags);
+ xhci_set_link_state(xhci, port_array, wIndex,
+ XDEV_U0);
++ clear_bit(wIndex, &bus_state->resuming_ports);
+ }
+ bus_state->port_c_suspend |= 1 << wIndex;
+
+diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
+index 2c9d2c33b834..68a02abd74ef 100644
+--- a/drivers/usb/host/xhci-ring.c
++++ b/drivers/usb/host/xhci-ring.c
+@@ -1738,7 +1738,8 @@ static void handle_port_status(struct xhci_hcd *xhci,
+ */
+ bogus_port_status = true;
+ goto cleanup;
+- } else {
++ } else if (!test_bit(faked_port_index,
++ &bus_state->resuming_ports)) {
+ xhci_dbg(xhci, "resume HS port %d\n", port_id);
+ bus_state->resume_done[faked_port_index] = jiffies +
+ msecs_to_jiffies(USB_RESUME_TIMEOUT);
+diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
+index dfcf0a3527b8..806ed2ba1c6e 100644
+--- a/drivers/usb/host/xhci.c
++++ b/drivers/usb/host/xhci.c
+@@ -1522,7 +1522,9 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
+ xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
+ "HW died, freeing TD.");
+ urb_priv = urb->hcpriv;
+- for (i = urb_priv->td_cnt; i < urb_priv->length; i++) {
++ for (i = urb_priv->td_cnt;
++ i < urb_priv->length && xhci->devs[urb->dev->slot_id];
++ i++) {
+ td = urb_priv->td[i];
+ if (!list_empty(&td->td_list))
+ list_del_init(&td->td_list);
+diff --git a/drivers/usb/phy/phy-twl4030-usb.c b/drivers/usb/phy/phy-twl4030-usb.c
+index 90730c8762b8..cb91d05fd177 100644
+--- a/drivers/usb/phy/phy-twl4030-usb.c
++++ b/drivers/usb/phy/phy-twl4030-usb.c
+@@ -732,6 +732,7 @@ static int twl4030_usb_remove(struct platform_device *pdev)
+ struct twl4030_usb *twl = platform_get_drvdata(pdev);
+ int val;
+
++ usb_remove_phy(&twl->phy);
+ cancel_delayed_work(&twl->id_workaround_work);
+ device_remove_file(twl->dev, &dev_attr_vbus);
+
+diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
+index 9a3c0f76db8c..c61684e69174 100644
+--- a/drivers/usb/serial/cp210x.c
++++ b/drivers/usb/serial/cp210x.c
+@@ -98,6 +98,7 @@ static const struct usb_device_id id_table[] = {
+ { USB_DEVICE(0x10C4, 0x81AC) }, /* MSD Dash Hawk */
+ { USB_DEVICE(0x10C4, 0x81AD) }, /* INSYS USB Modem */
+ { USB_DEVICE(0x10C4, 0x81C8) }, /* Lipowsky Industrie Elektronik GmbH, Baby-JTAG */
++ { USB_DEVICE(0x10C4, 0x81D7) }, /* IAI Corp. RCB-CV-USB USB to RS485 Adaptor */
+ { USB_DEVICE(0x10C4, 0x81E2) }, /* Lipowsky Industrie Elektronik GmbH, Baby-LIN */
+ { USB_DEVICE(0x10C4, 0x81E7) }, /* Aerocomm Radio */
+ { USB_DEVICE(0x10C4, 0x81E8) }, /* Zephyr Bioharness */
+diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
+index beb96e997951..b009e42f2624 100644
+--- a/drivers/usb/serial/ftdi_sio.c
++++ b/drivers/usb/serial/ftdi_sio.c
+@@ -838,6 +838,7 @@ static struct usb_device_id id_table_combined [] = {
+ { USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID),
+ .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+ { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
++ { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_SCU18) },
+ { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
+
+ /* Papouch devices based on FTDI chip */
+diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
+index 2943b97b2a83..7850071c0ae1 100644
+--- a/drivers/usb/serial/ftdi_sio_ids.h
++++ b/drivers/usb/serial/ftdi_sio_ids.h
+@@ -615,6 +615,7 @@
+ */
+ #define RATOC_VENDOR_ID 0x0584
+ #define RATOC_PRODUCT_ID_USB60F 0xb020
++#define RATOC_PRODUCT_ID_SCU18 0xb03a
+
+ /*
+ * Infineon Technologies
+diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
+index bdbe642e6569..81f6a572f016 100644
+--- a/drivers/usb/serial/option.c
++++ b/drivers/usb/serial/option.c
+@@ -269,6 +269,8 @@ static void option_instat_callback(struct urb *urb);
+ #define TELIT_PRODUCT_CC864_SINGLE 0x1006
+ #define TELIT_PRODUCT_DE910_DUAL 0x1010
+ #define TELIT_PRODUCT_UE910_V2 0x1012
++#define TELIT_PRODUCT_LE922_USBCFG0 0x1042
++#define TELIT_PRODUCT_LE922_USBCFG3 0x1043
+ #define TELIT_PRODUCT_LE920 0x1200
+ #define TELIT_PRODUCT_LE910 0x1201
+
+@@ -623,6 +625,16 @@ static const struct option_blacklist_info telit_le920_blacklist = {
+ .reserved = BIT(1) | BIT(5),
+ };
+
++static const struct option_blacklist_info telit_le922_blacklist_usbcfg0 = {
++ .sendsetup = BIT(2),
++ .reserved = BIT(0) | BIT(1) | BIT(3),
++};
++
++static const struct option_blacklist_info telit_le922_blacklist_usbcfg3 = {
++ .sendsetup = BIT(0),
++ .reserved = BIT(1) | BIT(2) | BIT(3),
++};
++
+ static const struct usb_device_id option_ids[] = {
+ { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
+ { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
+@@ -1168,6 +1180,10 @@ static const struct usb_device_id option_ids[] = {
+ { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_CC864_SINGLE) },
+ { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_DE910_DUAL) },
+ { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UE910_V2) },
++ { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG0),
++ .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 },
++ { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG3),
++ .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
+ { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910),
+ .driver_info = (kernel_ulong_t)&telit_le910_blacklist },
+ { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920),
+@@ -1679,7 +1695,7 @@ static const struct usb_device_id option_ids[] = {
+ { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EU3_P) },
+ { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PH8),
+ .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
+- { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX) },
++ { USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX, 0xff) },
+ { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PLXX),
+ .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
+ { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDM) },
+diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
+index 727905de0ba4..9c61a8671721 100644
+--- a/drivers/usb/serial/visor.c
++++ b/drivers/usb/serial/visor.c
+@@ -604,8 +604,10 @@ static int clie_5_attach(struct usb_serial *serial)
+ */
+
+ /* some sanity check */
+- if (serial->num_ports < 2)
+- return -1;
++ if (serial->num_bulk_out < 2) {
++ dev_err(&serial->interface->dev, "missing bulk out endpoints\n");
++ return -ENODEV;
++ }
+
+ /* port 0 now uses the modified endpoint Address */
+ port = serial->port[0];
+diff --git a/fs/aio.c b/fs/aio.c
+index 31a5cb74ae1f..b37e86c54a36 100644
+--- a/fs/aio.c
++++ b/fs/aio.c
+@@ -1380,11 +1380,16 @@ static ssize_t aio_setup_single_vector(struct kiocb *kiocb,
+ unsigned long *nr_segs,
+ struct iovec *iovec)
+ {
+- if (unlikely(!access_ok(!rw, buf, kiocb->ki_nbytes)))
++ size_t len = kiocb->ki_nbytes;
++
++ if (len > MAX_RW_COUNT)
++ len = MAX_RW_COUNT;
++
++ if (unlikely(!access_ok(!rw, buf, len)))
+ return -EFAULT;
+
+ iovec->iov_base = buf;
+- iovec->iov_len = kiocb->ki_nbytes;
++ iovec->iov_len = len;
+ *nr_segs = 1;
+ return 0;
+ }
+diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
+index d872fda15539..00fb056a6714 100644
+--- a/fs/binfmt_elf.c
++++ b/fs/binfmt_elf.c
+@@ -682,16 +682,16 @@ static int load_elf_binary(struct linux_binprm *bprm)
+ */
+ would_dump(bprm, interpreter);
+
+- retval = kernel_read(interpreter, 0, bprm->buf,
+- BINPRM_BUF_SIZE);
+- if (retval != BINPRM_BUF_SIZE) {
++ /* Get the exec headers */
++ retval = kernel_read(interpreter, 0,
++ (void *)&loc->interp_elf_ex,
++ sizeof(loc->interp_elf_ex));
++ if (retval != sizeof(loc->interp_elf_ex)) {
+ if (retval >= 0)
+ retval = -EIO;
+ goto out_free_dentry;
+ }
+
+- /* Get the exec headers */
+- loc->interp_elf_ex = *((struct elfhdr *)bprm->buf);
+ break;
+ }
+ elf_ppnt++;
+diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
+index db6818878462..5859a05f3a76 100644
+--- a/fs/btrfs/backref.c
++++ b/fs/btrfs/backref.c
+@@ -1267,7 +1267,8 @@ char *btrfs_ref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path,
+ read_extent_buffer(eb, dest + bytes_left,
+ name_off, name_len);
+ if (eb != eb_in) {
+- btrfs_tree_read_unlock_blocking(eb);
++ if (!path->skip_locking)
++ btrfs_tree_read_unlock_blocking(eb);
+ free_extent_buffer(eb);
+ }
+ ret = inode_ref_info(parent, 0, fs_root, path, &found_key);
+@@ -1286,9 +1287,10 @@ char *btrfs_ref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path,
+ eb = path->nodes[0];
+ /* make sure we can use eb after releasing the path */
+ if (eb != eb_in) {
+- atomic_inc(&eb->refs);
+- btrfs_tree_read_lock(eb);
+- btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
++ if (!path->skip_locking)
++ btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
++ path->nodes[0] = NULL;
++ path->locks[0] = 0;
+ }
+ btrfs_release_path(path);
+ iref = btrfs_item_ptr(eb, slot, struct btrfs_inode_ref);
+diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
+index ebc592317848..34f33e16b08f 100644
+--- a/fs/btrfs/delayed-inode.c
++++ b/fs/btrfs/delayed-inode.c
+@@ -1665,7 +1665,7 @@ int btrfs_should_delete_dir_index(struct list_head *del_list,
+ *
+ */
+ int btrfs_readdir_delayed_dir_index(struct dir_context *ctx,
+- struct list_head *ins_list)
++ struct list_head *ins_list, bool *emitted)
+ {
+ struct btrfs_dir_item *di;
+ struct btrfs_delayed_item *curr, *next;
+@@ -1709,6 +1709,7 @@ int btrfs_readdir_delayed_dir_index(struct dir_context *ctx,
+
+ if (over)
+ return 1;
++ *emitted = true;
+ }
+ return 0;
+ }
+diff --git a/fs/btrfs/delayed-inode.h b/fs/btrfs/delayed-inode.h
+index a4b38f934d14..6d01e37aca69 100644
+--- a/fs/btrfs/delayed-inode.h
++++ b/fs/btrfs/delayed-inode.h
+@@ -140,7 +140,7 @@ void btrfs_put_delayed_items(struct list_head *ins_list,
+ int btrfs_should_delete_dir_index(struct list_head *del_list,
+ u64 index);
+ int btrfs_readdir_delayed_dir_index(struct dir_context *ctx,
+- struct list_head *ins_list);
++ struct list_head *ins_list, bool *emitted);
+
+ /* for init */
+ int __init btrfs_delayed_inode_init(void);
+diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
+index 5074a1607812..264be61a3f40 100644
+--- a/fs/btrfs/inode.c
++++ b/fs/btrfs/inode.c
+@@ -5050,6 +5050,7 @@ static int btrfs_real_readdir(struct file *file, struct dir_context *ctx)
+ char *name_ptr;
+ int name_len;
+ int is_curr = 0; /* ctx->pos points to the current index? */
++ bool emitted;
+
+ /* FIXME, use a real flag for deciding about the key type */
+ if (root->fs_info->tree_root == root)
+@@ -5078,6 +5079,7 @@ static int btrfs_real_readdir(struct file *file, struct dir_context *ctx)
+ if (ret < 0)
+ goto err;
+
++ emitted = false;
+ while (1) {
+ leaf = path->nodes[0];
+ slot = path->slots[0];
+@@ -5157,6 +5159,7 @@ skip:
+
+ if (over)
+ goto nopos;
++ emitted = true;
+ di_len = btrfs_dir_name_len(leaf, di) +
+ btrfs_dir_data_len(leaf, di) + sizeof(*di);
+ di_cur += di_len;
+@@ -5169,11 +5172,20 @@ next:
+ if (key_type == BTRFS_DIR_INDEX_KEY) {
+ if (is_curr)
+ ctx->pos++;
+- ret = btrfs_readdir_delayed_dir_index(ctx, &ins_list);
++ ret = btrfs_readdir_delayed_dir_index(ctx, &ins_list, &emitted);
+ if (ret)
+ goto nopos;
+ }
+
++ /*
++ * If we haven't emitted any dir entry, we must not touch ctx->pos as
++ * it was was set to the termination value in previous call. We assume
++ * that "." and ".." were emitted if we reach this point and set the
++ * termination value as well for an empty directory.
++ */
++ if (ctx->pos > 2 && !emitted)
++ goto nopos;
++
+ /* Reached end of directory/root. Bump pos past the last item. */
+ ctx->pos++;
+
+diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
+index 134ed52f616f..684e1c5ad46d 100644
+--- a/fs/cifs/cifsencrypt.c
++++ b/fs/cifs/cifsencrypt.c
+@@ -703,7 +703,7 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, const struct nls_table *nls_cp)
+
+ ses->auth_key.response = kmalloc(baselen + tilen, GFP_KERNEL);
+ if (!ses->auth_key.response) {
+- rc = ENOMEM;
++ rc = -ENOMEM;
+ ses->auth_key.len = 0;
+ goto setup_ntlmv2_rsp_ret;
+ }
+diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
+index e327a9207ee1..5454aff19d18 100644
+--- a/fs/cifs/readdir.c
++++ b/fs/cifs/readdir.c
+@@ -849,6 +849,7 @@ int cifs_readdir(struct file *file, struct dir_context *ctx)
+ * if buggy server returns . and .. late do we want to
+ * check for that here?
+ */
++ *tmp_buf = 0;
+ rc = cifs_filldir(current_entry, file, ctx,
+ tmp_buf, max_len);
+ if (rc) {
+diff --git a/fs/dcache.c b/fs/dcache.c
+index 0fa3b3dba96f..40bf046884b1 100644
+--- a/fs/dcache.c
++++ b/fs/dcache.c
+@@ -441,7 +441,12 @@ void __d_drop(struct dentry *dentry)
+ {
+ if (!d_unhashed(dentry)) {
+ struct hlist_bl_head *b;
+- if (unlikely(dentry->d_flags & DCACHE_DISCONNECTED))
++ /*
++ * Hashed dentries are normally on the dentry hashtable,
++ * with the exception of those newly allocated by
++ * d_obtain_alias, which are always IS_ROOT:
++ */
++ if (unlikely(IS_ROOT(dentry)))
+ b = &dentry->d_sb->s_anon;
+ else
+ b = d_hash(dentry->d_parent, dentry->d_name.hash);
+diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
+index a726b9f29cb7..61af24e379ad 100644
+--- a/fs/devpts/inode.c
++++ b/fs/devpts/inode.c
+@@ -564,6 +564,26 @@ void devpts_kill_index(struct inode *ptmx_inode, int idx)
+ mutex_unlock(&allocated_ptys_lock);
+ }
+
++/*
++ * pty code needs to hold extra references in case of last /dev/tty close
++ */
++
++void devpts_add_ref(struct inode *ptmx_inode)
++{
++ struct super_block *sb = pts_sb_from_inode(ptmx_inode);
++
++ atomic_inc(&sb->s_active);
++ ihold(ptmx_inode);
++}
++
++void devpts_del_ref(struct inode *ptmx_inode)
++{
++ struct super_block *sb = pts_sb_from_inode(ptmx_inode);
++
++ iput(ptmx_inode);
++ deactivate_super(sb);
++}
++
+ /**
+ * devpts_pty_new -- create a new inode in /dev/pts/
+ * @ptmx_inode: inode of the master
+diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
+index 29c4e30bf4ca..11c7cb060a55 100644
+--- a/fs/ext4/ext4.h
++++ b/fs/ext4/ext4.h
+@@ -26,6 +26,7 @@
+ #include <linux/seqlock.h>
+ #include <linux/mutex.h>
+ #include <linux/timer.h>
++#include <linux/version.h>
+ #include <linux/wait.h>
+ #include <linux/blockgroup_lock.h>
+ #include <linux/percpu_counter.h>
+@@ -723,19 +724,55 @@ struct move_extent {
+ <= (EXT4_GOOD_OLD_INODE_SIZE + \
+ (einode)->i_extra_isize)) \
+
++/*
++ * We use an encoding that preserves the times for extra epoch "00":
++ *
++ * extra msb of adjust for signed
++ * epoch 32-bit 32-bit tv_sec to
++ * bits time decoded 64-bit tv_sec 64-bit tv_sec valid time range
++ * 0 0 1 -0x80000000..-0x00000001 0x000000000 1901-12-13..1969-12-31
++ * 0 0 0 0x000000000..0x07fffffff 0x000000000 1970-01-01..2038-01-19
++ * 0 1 1 0x080000000..0x0ffffffff 0x100000000 2038-01-19..2106-02-07
++ * 0 1 0 0x100000000..0x17fffffff 0x100000000 2106-02-07..2174-02-25
++ * 1 0 1 0x180000000..0x1ffffffff 0x200000000 2174-02-25..2242-03-16
++ * 1 0 0 0x200000000..0x27fffffff 0x200000000 2242-03-16..2310-04-04
++ * 1 1 1 0x280000000..0x2ffffffff 0x300000000 2310-04-04..2378-04-22
++ * 1 1 0 0x300000000..0x37fffffff 0x300000000 2378-04-22..2446-05-10
++ *
++ * Note that previous versions of the kernel on 64-bit systems would
++ * incorrectly use extra epoch bits 1,1 for dates between 1901 and
++ * 1970. e2fsck will correct this, assuming that it is run on the
++ * affected filesystem before 2242.
++ */
++
+ static inline __le32 ext4_encode_extra_time(struct timespec *time)
+ {
+- return cpu_to_le32((sizeof(time->tv_sec) > 4 ?
+- (time->tv_sec >> 32) & EXT4_EPOCH_MASK : 0) |
+- ((time->tv_nsec << EXT4_EPOCH_BITS) & EXT4_NSEC_MASK));
++ u32 extra = sizeof(time->tv_sec) > 4 ?
++ ((time->tv_sec - (s32)time->tv_sec) >> 32) & EXT4_EPOCH_MASK : 0;
++ return cpu_to_le32(extra | (time->tv_nsec << EXT4_EPOCH_BITS));
+ }
+
+ static inline void ext4_decode_extra_time(struct timespec *time, __le32 extra)
+ {
+- if (sizeof(time->tv_sec) > 4)
+- time->tv_sec |= (__u64)(le32_to_cpu(extra) & EXT4_EPOCH_MASK)
+- << 32;
+- time->tv_nsec = (le32_to_cpu(extra) & EXT4_NSEC_MASK) >> EXT4_EPOCH_BITS;
++ if (unlikely(sizeof(time->tv_sec) > 4 &&
++ (extra & cpu_to_le32(EXT4_EPOCH_MASK)))) {
++#if LINUX_VERSION_CODE < KERNEL_VERSION(4,20,0)
++ /* Handle legacy encoding of pre-1970 dates with epoch
++ * bits 1,1. We assume that by kernel version 4.20,
++ * everyone will have run fsck over the affected
++ * filesystems to correct the problem. (This
++ * backwards compatibility may be removed before this
++ * time, at the discretion of the ext4 developers.)
++ */
++ u64 extra_bits = le32_to_cpu(extra) & EXT4_EPOCH_MASK;
++ if (extra_bits == 3 && ((time->tv_sec) & 0x80000000) != 0)
++ extra_bits = 0;
++ time->tv_sec += extra_bits << 32;
++#else
++ time->tv_sec += (u64)(le32_to_cpu(extra) & EXT4_EPOCH_MASK) << 32;
++#endif
++ }
++ time->tv_nsec = (le32_to_cpu(extra) & EXT4_NSEC_MASK) >> EXT4_EPOCH_BITS;
+ }
+
+ #define EXT4_INODE_SET_XTIME(xtime, inode, raw_inode) \
+diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
+index 2400ad1c3d12..ae8ce49c0437 100644
+--- a/fs/ext4/resize.c
++++ b/fs/ext4/resize.c
+@@ -186,7 +186,7 @@ static struct ext4_new_flex_group_data *alloc_flex_gd(unsigned long flexbg_size)
+ if (flex_gd == NULL)
+ goto out3;
+
+- if (flexbg_size >= UINT_MAX / sizeof(struct ext4_new_flex_group_data))
++ if (flexbg_size >= UINT_MAX / sizeof(struct ext4_new_group_data))
+ goto out2;
+ flex_gd->count = flexbg_size;
+
+@@ -1030,7 +1030,7 @@ exit_free:
+ * do not copy the full number of backups at this time. The resize
+ * which changed s_groups_count will backup again.
+ */
+-static void update_backups(struct super_block *sb, int blk_off, char *data,
++static void update_backups(struct super_block *sb, sector_t blk_off, char *data,
+ int size, int meta_bg)
+ {
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+@@ -1055,7 +1055,7 @@ static void update_backups(struct super_block *sb, int blk_off, char *data,
+ group = ext4_list_backups(sb, &three, &five, &seven);
+ last = sbi->s_groups_count;
+ } else {
+- group = ext4_meta_bg_first_group(sb, group) + 1;
++ group = ext4_get_group_number(sb, blk_off) + 1;
+ last = (ext4_group_t)(group + EXT4_DESC_PER_BLOCK(sb) - 2);
+ }
+
+diff --git a/fs/fat/dir.c b/fs/fat/dir.c
+index 3963ede84eb0..75bf5e717ed8 100644
+--- a/fs/fat/dir.c
++++ b/fs/fat/dir.c
+@@ -614,9 +614,9 @@ parse_record:
+ int status = fat_parse_long(inode, &cpos, &bh, &de,
+ &unicode, &nr_slots);
+ if (status < 0) {
+- ctx->pos = cpos;
++ bh = NULL;
+ ret = status;
+- goto out;
++ goto end_of_dir;
+ } else if (status == PARSE_INVALID)
+ goto record_end;
+ else if (status == PARSE_NOT_LONGNAME)
+@@ -658,8 +658,9 @@ parse_record:
+ fill_len = short_len;
+
+ start_filldir:
+- if (!fake_offset)
+- ctx->pos = cpos - (nr_slots + 1) * sizeof(struct msdos_dir_entry);
++ ctx->pos = cpos - (nr_slots + 1) * sizeof(struct msdos_dir_entry);
++ if (fake_offset && ctx->pos < 2)
++ ctx->pos = 2;
+
+ if (!memcmp(de->name, MSDOS_DOT, MSDOS_NAME)) {
+ if (!dir_emit_dot(file, ctx))
+@@ -685,14 +686,19 @@ record_end:
+ fake_offset = 0;
+ ctx->pos = cpos;
+ goto get_new;
++
+ end_of_dir:
+- ctx->pos = cpos;
++ if (fake_offset && cpos < 2)
++ ctx->pos = 2;
++ else
++ ctx->pos = cpos;
+ fill_failed:
+ brelse(bh);
+ if (unicode)
+ __putname(unicode);
+ out:
+ mutex_unlock(&sbi->s_lock);
++
+ return ret;
+ }
+
+diff --git a/fs/fscache/netfs.c b/fs/fscache/netfs.c
+index b1bb6117473a..1cc98088001f 100644
+--- a/fs/fscache/netfs.c
++++ b/fs/fscache/netfs.c
+@@ -22,6 +22,7 @@ static LIST_HEAD(fscache_netfs_list);
+ int __fscache_register_netfs(struct fscache_netfs *netfs)
+ {
+ struct fscache_netfs *ptr;
++ struct fscache_cookie *cookie;
+ int ret;
+
+ _enter("{%s}", netfs->name);
+@@ -29,28 +30,24 @@ int __fscache_register_netfs(struct fscache_netfs *netfs)
+ INIT_LIST_HEAD(&netfs->link);
+
+ /* allocate a cookie for the primary index */
+- netfs->primary_index =
+- kmem_cache_zalloc(fscache_cookie_jar, GFP_KERNEL);
++ cookie = kmem_cache_zalloc(fscache_cookie_jar, GFP_KERNEL);
+
+- if (!netfs->primary_index) {
++ if (!cookie) {
+ _leave(" = -ENOMEM");
+ return -ENOMEM;
+ }
+
+ /* initialise the primary index cookie */
+- atomic_set(&netfs->primary_index->usage, 1);
+- atomic_set(&netfs->primary_index->n_children, 0);
+- atomic_set(&netfs->primary_index->n_active, 1);
++ atomic_set(&cookie->usage, 1);
++ atomic_set(&cookie->n_children, 0);
++ atomic_set(&cookie->n_active, 1);
+
+- netfs->primary_index->def = &fscache_fsdef_netfs_def;
+- netfs->primary_index->parent = &fscache_fsdef_index;
+- netfs->primary_index->netfs_data = netfs;
++ cookie->def = &fscache_fsdef_netfs_def;
++ cookie->parent = &fscache_fsdef_index;
++ cookie->netfs_data = netfs;
+
+- atomic_inc(&netfs->primary_index->parent->usage);
+- atomic_inc(&netfs->primary_index->parent->n_children);
+-
+- spin_lock_init(&netfs->primary_index->lock);
+- INIT_HLIST_HEAD(&netfs->primary_index->backing_objects);
++ spin_lock_init(&cookie->lock);
++ INIT_HLIST_HEAD(&cookie->backing_objects);
+
+ /* check the netfs type is not already present */
+ down_write(&fscache_addremove_sem);
+@@ -61,6 +58,10 @@ int __fscache_register_netfs(struct fscache_netfs *netfs)
+ goto already_registered;
+ }
+
++ atomic_inc(&cookie->parent->usage);
++ atomic_inc(&cookie->parent->n_children);
++
++ netfs->primary_index = cookie;
+ list_add(&netfs->link, &fscache_netfs_list);
+ ret = 0;
+
+@@ -70,11 +71,8 @@ int __fscache_register_netfs(struct fscache_netfs *netfs)
+ already_registered:
+ up_write(&fscache_addremove_sem);
+
+- if (ret < 0) {
+- netfs->primary_index->parent = NULL;
+- __fscache_cookie_put(netfs->primary_index);
+- netfs->primary_index = NULL;
+- }
++ if (ret < 0)
++ kmem_cache_free(fscache_cookie_jar, cookie);
+
+ _leave(" = %d", ret);
+ return ret;
+diff --git a/fs/fuse/file.c b/fs/fuse/file.c
+index d08c108065e1..8ef52e12cd57 100644
+--- a/fs/fuse/file.c
++++ b/fs/fuse/file.c
+@@ -988,6 +988,7 @@ static ssize_t fuse_fill_write_pages(struct fuse_req *req,
+ tmp = iov_iter_copy_from_user_atomic(page, ii, offset, bytes);
+ flush_dcache_page(page);
+
++ iov_iter_advance(ii, tmp);
+ if (!tmp) {
+ unlock_page(page);
+ page_cache_release(page);
+@@ -1000,7 +1001,6 @@ static ssize_t fuse_fill_write_pages(struct fuse_req *req,
+ req->page_descs[req->num_pages].length = tmp;
+ req->num_pages++;
+
+- iov_iter_advance(ii, tmp);
+ count += tmp;
+ pos += tmp;
+ offset += tmp;
+diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
+index 775a9e1c0c45..f18b5352df02 100644
+--- a/fs/jbd2/transaction.c
++++ b/fs/jbd2/transaction.c
+@@ -2066,6 +2066,7 @@ static int journal_unmap_buffer(journal_t *journal, struct buffer_head *bh,
+
+ if (!buffer_dirty(bh)) {
+ /* bdflush has written it. We can drop it now */
++ __jbd2_journal_remove_checkpoint(jh);
+ goto zap_buffer;
+ }
+
+@@ -2095,6 +2096,7 @@ static int journal_unmap_buffer(journal_t *journal, struct buffer_head *bh,
+ /* The orphan record's transaction has
+ * committed. We can cleanse this buffer */
+ clear_buffer_jbddirty(bh);
++ __jbd2_journal_remove_checkpoint(jh);
+ goto zap_buffer;
+ }
+ }
+diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
+index 794af58b388f..aa62c7308a1b 100644
+--- a/fs/nfs/nfs4proc.c
++++ b/fs/nfs/nfs4proc.c
+@@ -1165,6 +1165,7 @@ static void __update_open_stateid(struct nfs4_state *state, nfs4_stateid *open_s
+ * Protect the call to nfs4_state_set_mode_locked and
+ * serialise the stateid update
+ */
++ spin_lock(&state->owner->so_lock);
+ write_seqlock(&state->seqlock);
+ if (deleg_stateid != NULL) {
+ nfs4_stateid_copy(&state->stateid, deleg_stateid);
+@@ -1173,7 +1174,6 @@ static void __update_open_stateid(struct nfs4_state *state, nfs4_stateid *open_s
+ if (open_stateid != NULL)
+ nfs_set_open_stateid_locked(state, open_stateid, fmode);
+ write_sequnlock(&state->seqlock);
+- spin_lock(&state->owner->so_lock);
+ update_open_stateflags(state, fmode);
+ spin_unlock(&state->owner->so_lock);
+ }
+diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
+index 4fe55b776a74..918fb3ec82f7 100644
+--- a/fs/ocfs2/dlm/dlmmaster.c
++++ b/fs/ocfs2/dlm/dlmmaster.c
+@@ -2453,6 +2453,11 @@ static int dlm_migrate_lockres(struct dlm_ctxt *dlm,
+ spin_lock(&dlm->master_lock);
+ ret = dlm_add_migration_mle(dlm, res, mle, &oldmle, name,
+ namelen, target, dlm->node_num);
++ /* get an extra reference on the mle.
++ * otherwise the assert_master from the new
++ * master will destroy this.
++ */
++ dlm_get_mle_inuse(mle);
+ spin_unlock(&dlm->master_lock);
+ spin_unlock(&dlm->spinlock);
+
+@@ -2488,6 +2493,7 @@ fail:
+ if (mle_added) {
+ dlm_mle_detach_hb_events(dlm, mle);
+ dlm_put_mle(mle);
++ dlm_put_mle_inuse(mle);
+ } else if (mle) {
+ kmem_cache_free(dlm_mle_cache, mle);
+ mle = NULL;
+@@ -2505,17 +2511,6 @@ fail:
+ * ensure that all assert_master work is flushed. */
+ flush_workqueue(dlm->dlm_worker);
+
+- /* get an extra reference on the mle.
+- * otherwise the assert_master from the new
+- * master will destroy this.
+- * also, make sure that all callers of dlm_get_mle
+- * take both dlm->spinlock and dlm->master_lock */
+- spin_lock(&dlm->spinlock);
+- spin_lock(&dlm->master_lock);
+- dlm_get_mle_inuse(mle);
+- spin_unlock(&dlm->master_lock);
+- spin_unlock(&dlm->spinlock);
+-
+ /* notify new node and send all lock state */
+ /* call send_one_lockres with migration flag.
+ * this serves as notice to the target node that a
+@@ -3240,6 +3235,15 @@ top:
+ mle->new_master != dead_node)
+ continue;
+
++ if (mle->new_master == dead_node && mle->inuse) {
++ mlog(ML_NOTICE, "%s: target %u died during "
++ "migration from %u, the MLE is "
++ "still keep used, ignore it!\n",
++ dlm->name, dead_node,
++ mle->master);
++ continue;
++ }
++
+ /* If we have reached this point, this mle needs to be
+ * removed from the list and freed. */
+ dlm_clean_migration_mle(dlm, mle);
+diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
+index 7b4a3fa63fab..12b035548e45 100644
+--- a/fs/ocfs2/dlm/dlmrecovery.c
++++ b/fs/ocfs2/dlm/dlmrecovery.c
+@@ -2325,6 +2325,8 @@ static void dlm_do_local_recovery_cleanup(struct dlm_ctxt *dlm, u8 dead_node)
+ break;
+ }
+ }
++ dlm_lockres_clear_refmap_bit(dlm, res,
++ dead_node);
+ spin_unlock(&res->spinlock);
+ continue;
+ }
+diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
+index 9523fcd86c31..c19c2c57650b 100644
+--- a/fs/ocfs2/namei.c
++++ b/fs/ocfs2/namei.c
+@@ -330,8 +330,6 @@ static int ocfs2_mknod(struct inode *dir,
+ mlog_errno(status);
+ goto leave;
+ }
+- /* update inode->i_mode after mask with "umask". */
+- inode->i_mode = mode;
+
+ handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb,
+ S_ISDIR(mode),
+diff --git a/fs/pipe.c b/fs/pipe.c
+index 3e7ab278bb0c..50267e6ba688 100644
+--- a/fs/pipe.c
++++ b/fs/pipe.c
+@@ -401,6 +401,7 @@ pipe_read(struct kiocb *iocb, const struct iovec *_iov,
+ void *addr;
+ size_t chars = buf->len, remaining;
+ int error, atomic;
++ int offset;
+
+ if (chars > total_len)
+ chars = total_len;
+@@ -414,9 +415,10 @@ pipe_read(struct kiocb *iocb, const struct iovec *_iov,
+
+ atomic = !iov_fault_in_pages_write(iov, chars);
+ remaining = chars;
++ offset = buf->offset;
+ redo:
+ addr = ops->map(pipe, buf, atomic);
+- error = pipe_iov_copy_to_user(iov, addr, &buf->offset,
++ error = pipe_iov_copy_to_user(iov, addr, &offset,
+ &remaining, atomic);
+ ops->unmap(pipe, buf, addr);
+ if (unlikely(error)) {
+@@ -432,6 +434,7 @@ redo:
+ break;
+ }
+ ret += chars;
++ buf->offset += chars;
+ buf->len -= chars;
+
+ /* Was it a packet buffer? Clean up and exit */
+diff --git a/fs/proc/array.c b/fs/proc/array.c
+index 09f0d9c374a3..5c45eb5e4e0d 100644
+--- a/fs/proc/array.c
++++ b/fs/proc/array.c
+@@ -398,7 +398,7 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
+
+ state = *get_task_state(task);
+ vsize = eip = esp = 0;
+- permitted = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT);
++ permitted = ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS | PTRACE_MODE_NOAUDIT);
+ mm = get_task_mm(task);
+ if (mm) {
+ vsize = task_vsize(mm);
+diff --git a/fs/proc/base.c b/fs/proc/base.c
+index dfce13e5327b..293c987a5dab 100644
+--- a/fs/proc/base.c
++++ b/fs/proc/base.c
+@@ -239,7 +239,7 @@ out:
+
+ static int proc_pid_auxv(struct task_struct *task, char *buffer)
+ {
+- struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ);
++ struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ_FSCREDS);
+ int res = PTR_ERR(mm);
+ if (mm && !IS_ERR(mm)) {
+ unsigned int nwords = 0;
+@@ -269,7 +269,7 @@ static int proc_pid_wchan(struct task_struct *task, char *buffer)
+ wchan = get_wchan(task);
+
+ if (lookup_symbol_name(wchan, symname) < 0)
+- if (!ptrace_may_access(task, PTRACE_MODE_READ))
++ if (!ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS))
+ return 0;
+ else
+ return sprintf(buffer, "%lu", wchan);
+@@ -283,7 +283,7 @@ static int lock_trace(struct task_struct *task)
+ int err = mutex_lock_killable(&task->signal->cred_guard_mutex);
+ if (err)
+ return err;
+- if (!ptrace_may_access(task, PTRACE_MODE_ATTACH)) {
++ if (!ptrace_may_access(task, PTRACE_MODE_ATTACH_FSCREDS)) {
+ mutex_unlock(&task->signal->cred_guard_mutex);
+ return -EPERM;
+ }
+@@ -557,7 +557,7 @@ static int proc_fd_access_allowed(struct inode *inode)
+ */
+ task = get_proc_task(inode);
+ if (task) {
+- allowed = ptrace_may_access(task, PTRACE_MODE_READ);
++ allowed = ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS);
+ put_task_struct(task);
+ }
+ return allowed;
+@@ -592,7 +592,7 @@ static bool has_pid_permissions(struct pid_namespace *pid,
+ return true;
+ if (in_group_p(pid->pid_gid))
+ return true;
+- return ptrace_may_access(task, PTRACE_MODE_READ);
++ return ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS);
+ }
+
+
+@@ -707,7 +707,7 @@ static int __mem_open(struct inode *inode, struct file *file, unsigned int mode)
+ if (!task)
+ return -ESRCH;
+
+- mm = mm_access(task, mode);
++ mm = mm_access(task, mode | PTRACE_MODE_FSCREDS);
+ put_task_struct(task);
+
+ if (IS_ERR(mm))
+@@ -1749,7 +1749,7 @@ static int map_files_d_revalidate(struct dentry *dentry, unsigned int flags)
+ if (!task)
+ goto out_notask;
+
+- mm = mm_access(task, PTRACE_MODE_READ);
++ mm = mm_access(task, PTRACE_MODE_READ_FSCREDS);
+ if (IS_ERR_OR_NULL(mm))
+ goto out;
+
+@@ -1884,7 +1884,7 @@ static struct dentry *proc_map_files_lookup(struct inode *dir,
+ goto out;
+
+ result = -EACCES;
+- if (!ptrace_may_access(task, PTRACE_MODE_READ))
++ if (!ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS))
+ goto out_put_task;
+
+ result = -ENOENT;
+@@ -1941,7 +1941,7 @@ proc_map_files_readdir(struct file *file, struct dir_context *ctx)
+ goto out;
+
+ ret = -EACCES;
+- if (!ptrace_may_access(task, PTRACE_MODE_READ))
++ if (!ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS))
+ goto out_put_task;
+
+ ret = 0;
+@@ -2420,7 +2420,7 @@ static int do_io_accounting(struct task_struct *task, char *buffer, int whole)
+ if (result)
+ return result;
+
+- if (!ptrace_may_access(task, PTRACE_MODE_READ)) {
++ if (!ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS)) {
+ result = -EACCES;
+ goto out_unlock;
+ }
+diff --git a/fs/proc/fd.c b/fs/proc/fd.c
+index 985ea881b5bc..c06a1f97ac22 100644
+--- a/fs/proc/fd.c
++++ b/fs/proc/fd.c
+@@ -283,11 +283,19 @@ static struct dentry *proc_lookupfd(struct inode *dir, struct dentry *dentry,
+ */
+ int proc_fd_permission(struct inode *inode, int mask)
+ {
+- int rv = generic_permission(inode, mask);
++ struct task_struct *p;
++ int rv;
++
++ rv = generic_permission(inode, mask);
+ if (rv == 0)
+- return 0;
+- if (task_tgid(current) == proc_pid(inode))
++ return rv;
++
++ rcu_read_lock();
++ p = pid_task(proc_pid(inode), PIDTYPE_PID);
++ if (p && same_thread_group(p, current))
+ rv = 0;
++ rcu_read_unlock();
++
+ return rv;
+ }
+
+diff --git a/fs/proc/namespaces.c b/fs/proc/namespaces.c
+index 49a7fff2e83a..972592e76fb5 100644
+--- a/fs/proc/namespaces.c
++++ b/fs/proc/namespaces.c
+@@ -125,7 +125,7 @@ static void *proc_ns_follow_link(struct dentry *dentry, struct nameidata *nd)
+ if (!task)
+ goto out;
+
+- if (!ptrace_may_access(task, PTRACE_MODE_READ))
++ if (!ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS))
+ goto out_put_task;
+
+ ns_path.dentry = proc_ns_get_dentry(sb, task, ei->ns.ns_ops);
+@@ -158,7 +158,7 @@ static int proc_ns_readlink(struct dentry *dentry, char __user *buffer, int bufl
+ if (!task)
+ goto out;
+
+- if (!ptrace_may_access(task, PTRACE_MODE_READ))
++ if (!ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS))
+ goto out_put_task;
+
+ len = -ENOENT;
+diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c
+index c327d4ee1235..7b3792e5844a 100644
+--- a/fs/sysv/inode.c
++++ b/fs/sysv/inode.c
+@@ -161,14 +161,8 @@ void sysv_set_inode(struct inode *inode, dev_t rdev)
+ inode->i_fop = &sysv_dir_operations;
+ inode->i_mapping->a_ops = &sysv_aops;
+ } else if (S_ISLNK(inode->i_mode)) {
+- if (inode->i_blocks) {
+- inode->i_op = &sysv_symlink_inode_operations;
+- inode->i_mapping->a_ops = &sysv_aops;
+- } else {
+- inode->i_op = &sysv_fast_symlink_inode_operations;
+- nd_terminate_link(SYSV_I(inode)->i_data, inode->i_size,
+- sizeof(SYSV_I(inode)->i_data) - 1);
+- }
++ inode->i_op = &sysv_symlink_inode_operations;
++ inode->i_mapping->a_ops = &sysv_aops;
+ } else
+ init_special_inode(inode, inode->i_mode, rdev);
+ }
+diff --git a/fs/udf/inode.c b/fs/udf/inode.c
+index b0774f245199..b6b2958ba758 100644
+--- a/fs/udf/inode.c
++++ b/fs/udf/inode.c
+@@ -2069,14 +2069,29 @@ void udf_write_aext(struct inode *inode, struct extent_position *epos,
+ epos->offset += adsize;
+ }
+
++/*
++ * Only 1 indirect extent in a row really makes sense but allow upto 16 in case
++ * someone does some weird stuff.
++ */
++#define UDF_MAX_INDIR_EXTS 16
++
+ int8_t udf_next_aext(struct inode *inode, struct extent_position *epos,
+ struct kernel_lb_addr *eloc, uint32_t *elen, int inc)
+ {
+ int8_t etype;
++ unsigned int indirections = 0;
+
+ while ((etype = udf_current_aext(inode, epos, eloc, elen, inc)) ==
+ (EXT_NEXT_EXTENT_ALLOCDECS >> 30)) {
+ int block;
++
++ if (++indirections > UDF_MAX_INDIR_EXTS) {
++ udf_err(inode->i_sb,
++ "too many indirect extents in inode %lu\n",
++ inode->i_ino);
++ return -1;
++ }
++
+ epos->block = *eloc;
+ epos->offset = sizeof(struct allocExtDesc);
+ brelse(epos->bh);
+diff --git a/fs/udf/unicode.c b/fs/udf/unicode.c
+index d29c06fbf4ce..52330cb09daf 100644
+--- a/fs/udf/unicode.c
++++ b/fs/udf/unicode.c
+@@ -133,11 +133,15 @@ int udf_CS0toUTF8(struct ustr *utf_o, const struct ustr *ocu_i)
+ if (c < 0x80U)
+ utf_o->u_name[utf_o->u_len++] = (uint8_t)c;
+ else if (c < 0x800U) {
++ if (utf_o->u_len > (UDF_NAME_LEN - 4))
++ break;
+ utf_o->u_name[utf_o->u_len++] =
+ (uint8_t)(0xc0 | (c >> 6));
+ utf_o->u_name[utf_o->u_len++] =
+ (uint8_t)(0x80 | (c & 0x3f));
+ } else {
++ if (utf_o->u_len > (UDF_NAME_LEN - 5))
++ break;
+ utf_o->u_name[utf_o->u_len++] =
+ (uint8_t)(0xe0 | (c >> 12));
+ utf_o->u_name[utf_o->u_len++] =
+@@ -178,17 +182,22 @@ int udf_CS0toUTF8(struct ustr *utf_o, const struct ustr *ocu_i)
+ static int udf_UTF8toCS0(dstring *ocu, struct ustr *utf, int length)
+ {
+ unsigned c, i, max_val, utf_char;
+- int utf_cnt, u_len;
++ int utf_cnt, u_len, u_ch;
+
+ memset(ocu, 0, sizeof(dstring) * length);
+ ocu[0] = 8;
+ max_val = 0xffU;
++ u_ch = 1;
+
+ try_again:
+ u_len = 0U;
+ utf_char = 0U;
+ utf_cnt = 0U;
+ for (i = 0U; i < utf->u_len; i++) {
++ /* Name didn't fit? */
++ if (u_len + 1 + u_ch >= length)
++ return 0;
++
+ c = (uint8_t)utf->u_name[i];
+
+ /* Complete a multi-byte UTF-8 character */
+@@ -230,6 +239,7 @@ try_again:
+ if (max_val == 0xffU) {
+ max_val = 0xffffU;
+ ocu[0] = (uint8_t)0x10U;
++ u_ch = 2;
+ goto try_again;
+ }
+ goto error_out;
+@@ -282,7 +292,7 @@ static int udf_CS0toNLS(struct nls_table *nls, struct ustr *utf_o,
+ c = (c << 8) | ocu[i++];
+
+ len = nls->uni2char(c, &utf_o->u_name[utf_o->u_len],
+- UDF_NAME_LEN - utf_o->u_len);
++ UDF_NAME_LEN - 2 - utf_o->u_len);
+ /* Valid character? */
+ if (len >= 0)
+ utf_o->u_len += len;
+@@ -300,15 +310,19 @@ static int udf_NLStoCS0(struct nls_table *nls, dstring *ocu, struct ustr *uni,
+ int len;
+ unsigned i, max_val;
+ uint16_t uni_char;
+- int u_len;
++ int u_len, u_ch;
+
+ memset(ocu, 0, sizeof(dstring) * length);
+ ocu[0] = 8;
+ max_val = 0xffU;
++ u_ch = 1;
+
+ try_again:
+ u_len = 0U;
+ for (i = 0U; i < uni->u_len; i++) {
++ /* Name didn't fit? */
++ if (u_len + 1 + u_ch >= length)
++ return 0;
+ len = nls->char2uni(&uni->u_name[i], uni->u_len - i, &uni_char);
+ if (!len)
+ continue;
+@@ -321,6 +335,7 @@ try_again:
+ if (uni_char > max_val) {
+ max_val = 0xffffU;
+ ocu[0] = (uint8_t)0x10U;
++ u_ch = 2;
+ goto try_again;
+ }
+
+diff --git a/fs/xfs/xfs_ag.h b/fs/xfs/xfs_ag.h
+index 1cb740afd674..78ec58fc282e 100644
+--- a/fs/xfs/xfs_ag.h
++++ b/fs/xfs/xfs_ag.h
+@@ -224,7 +224,7 @@ typedef struct xfs_agfl {
+ __be64 agfl_lsn;
+ __be32 agfl_crc;
+ __be32 agfl_bno[]; /* actually XFS_AGFL_SIZE(mp) */
+-} xfs_agfl_t;
++} __attribute__((packed)) xfs_agfl_t;
+
+ /*
+ * tags for inode radix tree
+diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
+index 263470075ea2..c4a4ad0cd33e 100644
+--- a/fs/xfs/xfs_buf.c
++++ b/fs/xfs/xfs_buf.c
+@@ -596,6 +596,13 @@ found:
+ }
+ }
+
++ /*
++ * Clear b_error if this is a lookup from a caller that doesn't expect
++ * valid data to be found in the buffer.
++ */
++ if (!(flags & XBF_READ))
++ xfs_buf_ioerror(bp, 0);
++
+ XFS_STATS_INC(xb_get);
+ trace_xfs_buf_get(bp, flags, _RET_IP_);
+ return bp;
+diff --git a/fs/xfs/xfs_inode_buf.c b/fs/xfs/xfs_inode_buf.c
+index 63382d37f565..4b1447b3a9e4 100644
+--- a/fs/xfs/xfs_inode_buf.c
++++ b/fs/xfs/xfs_inode_buf.c
+@@ -66,11 +66,12 @@ xfs_inobp_check(
+ * has not had the inode cores stamped into it. Hence for readahead, the buffer
+ * may be potentially invalid.
+ *
+- * If the readahead buffer is invalid, we don't want to mark it with an error,
+- * but we do want to clear the DONE status of the buffer so that a followup read
+- * will re-read it from disk. This will ensure that we don't get an unnecessary
+- * warnings during log recovery and we don't get unnecssary panics on debug
+- * kernels.
++ * If the readahead buffer is invalid, we need to mark it with an error and
++ * clear the DONE status of the buffer so that a followup read will re-read it
++ * from disk. We don't report the error otherwise to avoid warnings during log
++ * recovery and we don't get unnecssary panics on debug kernels. We use EIO here
++ * because all we want to do is say readahead failed; there is no-one to report
++ * the error to, so this will distinguish it from a non-ra verifier failure.
+ */
+ static void
+ xfs_inode_buf_verify(
+@@ -98,6 +99,7 @@ xfs_inode_buf_verify(
+ XFS_RANDOM_ITOBP_INOTOBP))) {
+ if (readahead) {
+ bp->b_flags &= ~XBF_DONE;
++ xfs_buf_ioerror(bp, -EIO);
+ return;
+ }
+
+diff --git a/include/crypto/hash.h b/include/crypto/hash.h
+index 26cb1eb16f4c..4bdd795dfaf9 100644
+--- a/include/crypto/hash.h
++++ b/include/crypto/hash.h
+@@ -94,6 +94,7 @@ struct crypto_ahash {
+ unsigned int keylen);
+
+ unsigned int reqsize;
++ bool has_setkey;
+ struct crypto_tfm base;
+ };
+
+@@ -181,6 +182,12 @@ static inline void *ahash_request_ctx(struct ahash_request *req)
+
+ int crypto_ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
+ unsigned int keylen);
++
++static inline bool crypto_ahash_has_setkey(struct crypto_ahash *tfm)
++{
++ return tfm->has_setkey;
++}
++
+ int crypto_ahash_finup(struct ahash_request *req);
+ int crypto_ahash_final(struct ahash_request *req);
+ int crypto_ahash_digest(struct ahash_request *req);
+diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h
+index d61c11170213..9e6a2f38c52f 100644
+--- a/include/crypto/if_alg.h
++++ b/include/crypto/if_alg.h
+@@ -30,6 +30,8 @@ struct alg_sock {
+
+ struct sock *parent;
+
++ unsigned int refcnt;
++
+ const struct af_alg_type *type;
+ void *private;
+ };
+@@ -49,8 +51,10 @@ struct af_alg_type {
+ void (*release)(void *private);
+ int (*setkey)(void *private, const u8 *key, unsigned int keylen);
+ int (*accept)(void *private, struct sock *sk);
++ int (*accept_nokey)(void *private, struct sock *sk);
+
+ struct proto_ops *ops;
++ struct proto_ops *ops_nokey;
+ struct module *owner;
+ char name[14];
+ };
+@@ -64,6 +68,7 @@ int af_alg_register_type(const struct af_alg_type *type);
+ int af_alg_unregister_type(const struct af_alg_type *type);
+
+ int af_alg_release(struct socket *sock);
++void af_alg_release_parent(struct sock *sk);
+ int af_alg_accept(struct sock *sk, struct socket *newsock);
+
+ int af_alg_make_sg(struct af_alg_sgl *sgl, void __user *addr, int len,
+@@ -80,11 +85,6 @@ static inline struct alg_sock *alg_sk(struct sock *sk)
+ return (struct alg_sock *)sk;
+ }
+
+-static inline void af_alg_release_parent(struct sock *sk)
+-{
+- sock_put(alg_sk(sk)->parent);
+-}
+-
+ static inline void af_alg_init_completion(struct af_alg_completion *completion)
+ {
+ init_completion(&completion->completion);
+diff --git a/include/linux/compiler.h b/include/linux/compiler.h
+index 4a3caa61a002..19a199414bd0 100644
+--- a/include/linux/compiler.h
++++ b/include/linux/compiler.h
+@@ -131,7 +131,7 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
+ */
+ #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
+ #define __trace_if(cond) \
+- if (__builtin_constant_p((cond)) ? !!(cond) : \
++ if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
+ ({ \
+ int ______r; \
+ static struct ftrace_branch_data \
+diff --git a/include/linux/devpts_fs.h b/include/linux/devpts_fs.h
+index 251a2090a554..e0ee0b3000b2 100644
+--- a/include/linux/devpts_fs.h
++++ b/include/linux/devpts_fs.h
+@@ -19,6 +19,8 @@
+
+ int devpts_new_index(struct inode *ptmx_inode);
+ void devpts_kill_index(struct inode *ptmx_inode, int idx);
++void devpts_add_ref(struct inode *ptmx_inode);
++void devpts_del_ref(struct inode *ptmx_inode);
+ /* mknod in devpts */
+ struct inode *devpts_pty_new(struct inode *ptmx_inode, dev_t device, int index,
+ void *priv);
+@@ -32,6 +34,8 @@ void devpts_pty_kill(struct inode *inode);
+ /* Dummy stubs in the no-pty case */
+ static inline int devpts_new_index(struct inode *ptmx_inode) { return -EINVAL; }
+ static inline void devpts_kill_index(struct inode *ptmx_inode, int idx) { }
++static inline void devpts_add_ref(struct inode *ptmx_inode) { }
++static inline void devpts_del_ref(struct inode *ptmx_inode) { }
+ static inline struct inode *devpts_pty_new(struct inode *ptmx_inode,
+ dev_t device, int index, void *priv)
+ {
+diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
+index cc79eff4a1ad..608d90444b6f 100644
+--- a/include/linux/ptrace.h
++++ b/include/linux/ptrace.h
+@@ -56,7 +56,29 @@ extern void exit_ptrace(struct task_struct *tracer);
+ #define PTRACE_MODE_READ 0x01
+ #define PTRACE_MODE_ATTACH 0x02
+ #define PTRACE_MODE_NOAUDIT 0x04
+-/* Returns true on success, false on denial. */
++#define PTRACE_MODE_FSCREDS 0x08
++#define PTRACE_MODE_REALCREDS 0x10
++
++/* shorthands for READ/ATTACH and FSCREDS/REALCREDS combinations */
++#define PTRACE_MODE_READ_FSCREDS (PTRACE_MODE_READ | PTRACE_MODE_FSCREDS)
++#define PTRACE_MODE_READ_REALCREDS (PTRACE_MODE_READ | PTRACE_MODE_REALCREDS)
++#define PTRACE_MODE_ATTACH_FSCREDS (PTRACE_MODE_ATTACH | PTRACE_MODE_FSCREDS)
++#define PTRACE_MODE_ATTACH_REALCREDS (PTRACE_MODE_ATTACH | PTRACE_MODE_REALCREDS)
++
++/**
++ * ptrace_may_access - check whether the caller is permitted to access
++ * a target task.
++ * @task: target task
++ * @mode: selects type of access and caller credentials
++ *
++ * Returns true on success, false on denial.
++ *
++ * One of the flags PTRACE_MODE_FSCREDS and PTRACE_MODE_REALCREDS must
++ * be set in @mode to specify whether the access was requested through
++ * a filesystem syscall (should use effective capabilities and fsuid
++ * of the caller) or through an explicit syscall such as
++ * process_vm_writev or ptrace (and should use the real credentials).
++ */
+ extern bool ptrace_may_access(struct task_struct *task, unsigned int mode);
+
+ static inline int ptrace_reparented(struct task_struct *child)
+diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h
+index e8be53ecfc45..16604454e95f 100644
+--- a/include/linux/radix-tree.h
++++ b/include/linux/radix-tree.h
+@@ -320,12 +320,28 @@ void **radix_tree_next_chunk(struct radix_tree_root *root,
+ struct radix_tree_iter *iter, unsigned flags);
+
+ /**
++ * radix_tree_iter_retry - retry this chunk of the iteration
++ * @iter: iterator state
++ *
++ * If we iterate over a tree protected only by the RCU lock, a race
++ * against deletion or creation may result in seeing a slot for which
++ * radix_tree_deref_retry() returns true. If so, call this function
++ * and continue the iteration.
++ */
++static inline __must_check
++void **radix_tree_iter_retry(struct radix_tree_iter *iter)
++{
++ iter->next_index = iter->index;
++ return NULL;
++}
++
++/**
+ * radix_tree_chunk_size - get current chunk size
+ *
+ * @iter: pointer to radix tree iterator
+ * Returns: current chunk size
+ */
+-static __always_inline unsigned
++static __always_inline long
+ radix_tree_chunk_size(struct radix_tree_iter *iter)
+ {
+ return iter->next_index - iter->index;
+@@ -359,9 +375,9 @@ radix_tree_next_slot(void **slot, struct radix_tree_iter *iter, unsigned flags)
+ return slot + offset + 1;
+ }
+ } else {
+- unsigned size = radix_tree_chunk_size(iter) - 1;
++ long size = radix_tree_chunk_size(iter);
+
+- while (size--) {
++ while (--size > 0) {
+ slot++;
+ iter->index++;
+ if (likely(*slot))
+diff --git a/include/linux/signal.h b/include/linux/signal.h
+index 2ac423bdb676..53944e50e421 100644
+--- a/include/linux/signal.h
++++ b/include/linux/signal.h
+@@ -247,7 +247,6 @@ extern int sigprocmask(int, sigset_t *, sigset_t *);
+ extern void set_current_blocked(sigset_t *);
+ extern void __set_current_blocked(const sigset_t *);
+ extern int show_unhandled_signals;
+-extern int sigsuspend(sigset_t *);
+
+ struct sigaction {
+ #ifndef __ARCH_HAS_IRIX_SIGACTION
+diff --git a/kernel/events/core.c b/kernel/events/core.c
+index cf9f61763ab1..b9c4a60f5137 100644
+--- a/kernel/events/core.c
++++ b/kernel/events/core.c
+@@ -3047,7 +3047,7 @@ find_lively_task_by_vpid(pid_t vpid)
+
+ /* Reuse ptrace permission checks for now. */
+ err = -EACCES;
+- if (!ptrace_may_access(task, PTRACE_MODE_READ))
++ if (!ptrace_may_access(task, PTRACE_MODE_READ_REALCREDS))
+ goto errout;
+
+ return task;
+@@ -5848,6 +5848,10 @@ static int perf_tp_filter_match(struct perf_event *event,
+ {
+ void *record = data->raw->data;
+
++ /* only top level events have filters set */
++ if (event->parent)
++ event = event->parent;
++
+ if (likely(!event->filter) || filter_match_preds(event->filter, record))
+ return 1;
+ return 0;
+diff --git a/kernel/futex.c b/kernel/futex.c
+index bd0bc06772f6..509bdd404414 100644
+--- a/kernel/futex.c
++++ b/kernel/futex.c
+@@ -2497,6 +2497,11 @@ static int futex_wait_requeue_pi(u32 __user *uaddr, unsigned int flags,
+ if (q.pi_state && (q.pi_state->owner != current)) {
+ spin_lock(q.lock_ptr);
+ ret = fixup_pi_state_owner(uaddr2, &q, current);
++ /*
++ * Drop the reference to the pi state which
++ * the requeue_pi() code acquired for us.
++ */
++ free_pi_state(q.pi_state);
+ spin_unlock(q.lock_ptr);
+ }
+ } else {
+@@ -2623,7 +2628,7 @@ SYSCALL_DEFINE3(get_robust_list, int, pid,
+ }
+
+ ret = -EPERM;
+- if (!ptrace_may_access(p, PTRACE_MODE_READ))
++ if (!ptrace_may_access(p, PTRACE_MODE_READ_REALCREDS))
+ goto err_unlock;
+
+ head = p->robust_list;
+diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c
+index f9f44fd4d34d..3888617a1f9e 100644
+--- a/kernel/futex_compat.c
++++ b/kernel/futex_compat.c
+@@ -155,7 +155,7 @@ COMPAT_SYSCALL_DEFINE3(get_robust_list, int, pid,
+ }
+
+ ret = -EPERM;
+- if (!ptrace_may_access(p, PTRACE_MODE_READ))
++ if (!ptrace_may_access(p, PTRACE_MODE_READ_REALCREDS))
+ goto err_unlock;
+
+ head = p->compat_robust_list;
+diff --git a/kernel/kcmp.c b/kernel/kcmp.c
+index 0aa69ea1d8fd..3a47fa998fe0 100644
+--- a/kernel/kcmp.c
++++ b/kernel/kcmp.c
+@@ -122,8 +122,8 @@ SYSCALL_DEFINE5(kcmp, pid_t, pid1, pid_t, pid2, int, type,
+ &task2->signal->cred_guard_mutex);
+ if (ret)
+ goto err;
+- if (!ptrace_may_access(task1, PTRACE_MODE_READ) ||
+- !ptrace_may_access(task2, PTRACE_MODE_READ)) {
++ if (!ptrace_may_access(task1, PTRACE_MODE_READ_REALCREDS) ||
++ !ptrace_may_access(task2, PTRACE_MODE_READ_REALCREDS)) {
+ ret = -EPERM;
+ goto err_unlock;
+ }
+diff --git a/kernel/module.c b/kernel/module.c
+index 7d1c2ea27898..cb56e581062d 100644
+--- a/kernel/module.c
++++ b/kernel/module.c
+@@ -3425,6 +3425,11 @@ static inline int is_arm_mapping_symbol(const char *str)
+ && (str[2] == '\0' || str[2] == '.');
+ }
+
++static const char *symname(struct module *mod, unsigned int symnum)
++{
++ return mod->strtab + mod->symtab[symnum].st_name;
++}
++
+ static const char *get_ksymbol(struct module *mod,
+ unsigned long addr,
+ unsigned long *size,
+@@ -3447,15 +3452,15 @@ static const char *get_ksymbol(struct module *mod,
+
+ /* We ignore unnamed symbols: they're uninformative
+ * and inserted at a whim. */
++ if (*symname(mod, i) == '\0'
++ || is_arm_mapping_symbol(symname(mod, i)))
++ continue;
++
+ if (mod->symtab[i].st_value <= addr
+- && mod->symtab[i].st_value > mod->symtab[best].st_value
+- && *(mod->strtab + mod->symtab[i].st_name) != '\0'
+- && !is_arm_mapping_symbol(mod->strtab + mod->symtab[i].st_name))
++ && mod->symtab[i].st_value > mod->symtab[best].st_value)
+ best = i;
+ if (mod->symtab[i].st_value > addr
+- && mod->symtab[i].st_value < nextval
+- && *(mod->strtab + mod->symtab[i].st_name) != '\0'
+- && !is_arm_mapping_symbol(mod->strtab + mod->symtab[i].st_name))
++ && mod->symtab[i].st_value < nextval)
+ nextval = mod->symtab[i].st_value;
+ }
+
+@@ -3466,7 +3471,7 @@ static const char *get_ksymbol(struct module *mod,
+ *size = nextval - mod->symtab[best].st_value;
+ if (offset)
+ *offset = addr - mod->symtab[best].st_value;
+- return mod->strtab + mod->symtab[best].st_name;
++ return symname(mod, best);
+ }
+
+ /* For kallsyms to ask for address resolution. NULL means not found. Careful
+@@ -3567,8 +3572,7 @@ int module_get_kallsym(unsigned int symnum, unsigned long *value, char *type,
+ if (symnum < mod->num_symtab) {
+ *value = mod->symtab[symnum].st_value;
+ *type = mod->symtab[symnum].st_info;
+- strlcpy(name, mod->strtab + mod->symtab[symnum].st_name,
+- KSYM_NAME_LEN);
++ strlcpy(name, symname(mod, symnum), KSYM_NAME_LEN);
+ strlcpy(module_name, mod->name, MODULE_NAME_LEN);
+ *exported = is_exported(name, *value, mod);
+ preempt_enable();
+@@ -3585,7 +3589,7 @@ static unsigned long mod_find_symname(struct module *mod, const char *name)
+ unsigned int i;
+
+ for (i = 0; i < mod->num_symtab; i++)
+- if (strcmp(name, mod->strtab+mod->symtab[i].st_name) == 0 &&
++ if (strcmp(name, symname(mod, i)) == 0 &&
+ mod->symtab[i].st_info != 'U')
+ return mod->symtab[i].st_value;
+ return 0;
+@@ -3627,7 +3631,7 @@ int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *,
+ if (mod->state == MODULE_STATE_UNFORMED)
+ continue;
+ for (i = 0; i < mod->num_symtab; i++) {
+- ret = fn(data, mod->strtab + mod->symtab[i].st_name,
++ ret = fn(data, symname(mod, i),
+ mod, mod->symtab[i].st_value);
+ if (ret != 0)
+ return ret;
+diff --git a/kernel/ptrace.c b/kernel/ptrace.c
+index be9760f8284a..4524314ecbb4 100644
+--- a/kernel/ptrace.c
++++ b/kernel/ptrace.c
+@@ -225,6 +225,14 @@ static int ptrace_has_cap(struct user_namespace *ns, unsigned int mode)
+ static int __ptrace_may_access(struct task_struct *task, unsigned int mode)
+ {
+ const struct cred *cred = current_cred(), *tcred;
++ int dumpable = 0;
++ kuid_t caller_uid;
++ kgid_t caller_gid;
++
++ if (!(mode & PTRACE_MODE_FSCREDS) == !(mode & PTRACE_MODE_REALCREDS)) {
++ WARN(1, "denying ptrace access check without PTRACE_MODE_*CREDS\n");
++ return -EPERM;
++ }
+
+ /* May we inspect the given task?
+ * This check is used both for attaching with ptrace
+@@ -234,18 +242,33 @@ static int __ptrace_may_access(struct task_struct *task, unsigned int mode)
+ * because setting up the necessary parent/child relationship
+ * or halting the specified task is impossible.
+ */
+- int dumpable = 0;
++
+ /* Don't let security modules deny introspection */
+ if (same_thread_group(task, current))
+ return 0;
+ rcu_read_lock();
++ if (mode & PTRACE_MODE_FSCREDS) {
++ caller_uid = cred->fsuid;
++ caller_gid = cred->fsgid;
++ } else {
++ /*
++ * Using the euid would make more sense here, but something
++ * in userland might rely on the old behavior, and this
++ * shouldn't be a security problem since
++ * PTRACE_MODE_REALCREDS implies that the caller explicitly
++ * used a syscall that requests access to another process
++ * (and not a filesystem syscall to procfs).
++ */
++ caller_uid = cred->uid;
++ caller_gid = cred->gid;
++ }
+ tcred = __task_cred(task);
+- if (uid_eq(cred->uid, tcred->euid) &&
+- uid_eq(cred->uid, tcred->suid) &&
+- uid_eq(cred->uid, tcred->uid) &&
+- gid_eq(cred->gid, tcred->egid) &&
+- gid_eq(cred->gid, tcred->sgid) &&
+- gid_eq(cred->gid, tcred->gid))
++ if (uid_eq(caller_uid, tcred->euid) &&
++ uid_eq(caller_uid, tcred->suid) &&
++ uid_eq(caller_uid, tcred->uid) &&
++ gid_eq(caller_gid, tcred->egid) &&
++ gid_eq(caller_gid, tcred->sgid) &&
++ gid_eq(caller_gid, tcred->gid))
+ goto ok;
+ if (ptrace_has_cap(tcred->user_ns, mode))
+ goto ok;
+@@ -312,7 +335,7 @@ static int ptrace_attach(struct task_struct *task, long request,
+ goto out;
+
+ task_lock(task);
+- retval = __ptrace_may_access(task, PTRACE_MODE_ATTACH);
++ retval = __ptrace_may_access(task, PTRACE_MODE_ATTACH_REALCREDS);
+ task_unlock(task);
+ if (retval)
+ goto unlock_creds;
+diff --git a/kernel/signal.c b/kernel/signal.c
+index fca2decd695e..e99136208d7e 100644
+--- a/kernel/signal.c
++++ b/kernel/signal.c
+@@ -3551,7 +3551,7 @@ SYSCALL_DEFINE0(pause)
+
+ #endif
+
+-int sigsuspend(sigset_t *set)
++static int sigsuspend(sigset_t *set)
+ {
+ current->saved_sigmask = current->blocked;
+ set_current_blocked(set);
+diff --git a/kernel/trace/trace_printk.c b/kernel/trace/trace_printk.c
+index 2900817ba65c..7c8cef653166 100644
+--- a/kernel/trace/trace_printk.c
++++ b/kernel/trace/trace_printk.c
+@@ -269,6 +269,7 @@ static const char **find_next(void *v, loff_t *pos)
+ if (*pos < last_index + start_index)
+ return __start___tracepoint_str + (*pos - last_index);
+
++ start_index += last_index;
+ return find_next_mod_format(start_index, v, fmt, pos);
+ }
+
+diff --git a/lib/dma-debug.c b/lib/dma-debug.c
+index d87a17a819d0..eb43517bf261 100644
+--- a/lib/dma-debug.c
++++ b/lib/dma-debug.c
+@@ -962,7 +962,7 @@ static inline bool overlap(void *addr, unsigned long len, void *start, void *end
+
+ static void check_for_illegal_area(struct device *dev, void *addr, unsigned long len)
+ {
+- if (overlap(addr, len, _text, _etext) ||
++ if (overlap(addr, len, _stext, _etext) ||
+ overlap(addr, len, __start_rodata, __end_rodata))
+ err_printk(dev, NULL, "DMA-API: device driver maps memory from kernel text or rodata [addr=%p] [len=%lu]\n", addr, len);
+ }
+diff --git a/lib/dump_stack.c b/lib/dump_stack.c
+index f23b63f0a1c3..1e21b4682666 100644
+--- a/lib/dump_stack.c
++++ b/lib/dump_stack.c
+@@ -25,6 +25,7 @@ static atomic_t dump_lock = ATOMIC_INIT(-1);
+
+ asmlinkage void dump_stack(void)
+ {
++ unsigned long flags;
+ int was_locked;
+ int old;
+ int cpu;
+@@ -33,9 +34,8 @@ asmlinkage void dump_stack(void)
+ * Permit this cpu to perform nested stack dumps while serialising
+ * against other CPUs
+ */
+- preempt_disable();
+-
+ retry:
++ local_irq_save(flags);
+ cpu = smp_processor_id();
+ old = atomic_cmpxchg(&dump_lock, -1, cpu);
+ if (old == -1) {
+@@ -43,6 +43,7 @@ retry:
+ } else if (old == cpu) {
+ was_locked = 1;
+ } else {
++ local_irq_restore(flags);
+ cpu_relax();
+ goto retry;
+ }
+@@ -52,7 +53,7 @@ retry:
+ if (!was_locked)
+ atomic_set(&dump_lock, -1);
+
+- preempt_enable();
++ local_irq_restore(flags);
+ }
+ #else
+ asmlinkage void dump_stack(void)
+diff --git a/lib/klist.c b/lib/klist.c
+index 358a368a2947..2e59aecbec0d 100644
+--- a/lib/klist.c
++++ b/lib/klist.c
+@@ -282,9 +282,9 @@ void klist_iter_init_node(struct klist *k, struct klist_iter *i,
+ struct klist_node *n)
+ {
+ i->i_klist = k;
+- i->i_cur = n;
+- if (n)
+- kref_get(&n->n_ref);
++ i->i_cur = NULL;
++ if (n && kref_get_unless_zero(&n->n_ref))
++ i->i_cur = n;
+ }
+ EXPORT_SYMBOL_GPL(klist_iter_init_node);
+
+diff --git a/lib/radix-tree.c b/lib/radix-tree.c
+index e8adb5d8a184..50a9a1c155d3 100644
+--- a/lib/radix-tree.c
++++ b/lib/radix-tree.c
+@@ -977,9 +977,13 @@ radix_tree_gang_lookup(struct radix_tree_root *root, void **results,
+ return 0;
+
+ radix_tree_for_each_slot(slot, root, &iter, first_index) {
+- results[ret] = indirect_to_ptr(rcu_dereference_raw(*slot));
++ results[ret] = rcu_dereference_raw(*slot);
+ if (!results[ret])
+ continue;
++ if (radix_tree_is_indirect_ptr(results[ret])) {
++ slot = radix_tree_iter_retry(&iter);
++ continue;
++ }
+ if (++ret == max_items)
+ break;
+ }
+@@ -1056,9 +1060,13 @@ radix_tree_gang_lookup_tag(struct radix_tree_root *root, void **results,
+ return 0;
+
+ radix_tree_for_each_tagged(slot, root, &iter, first_index, tag) {
+- results[ret] = indirect_to_ptr(rcu_dereference_raw(*slot));
++ results[ret] = rcu_dereference_raw(*slot);
+ if (!results[ret])
+ continue;
++ if (radix_tree_is_indirect_ptr(results[ret])) {
++ slot = radix_tree_iter_retry(&iter);
++ continue;
++ }
+ if (++ret == max_items)
+ break;
+ }
+diff --git a/mm/memcontrol.c b/mm/memcontrol.c
+index ff648969e402..5904fc833523 100644
+--- a/mm/memcontrol.c
++++ b/mm/memcontrol.c
+@@ -5830,16 +5830,17 @@ static void mem_cgroup_usage_unregister_event(struct cgroup_subsys_state *css,
+ swap_buffers:
+ /* Swap primary and spare array */
+ thresholds->spare = thresholds->primary;
+- /* If all events are unregistered, free the spare array */
+- if (!new) {
+- kfree(thresholds->spare);
+- thresholds->spare = NULL;
+- }
+
+ rcu_assign_pointer(thresholds->primary, new);
+
+ /* To be sure that nobody uses thresholds */
+ synchronize_rcu();
++
++ /* If all events are unregistered, free the spare array */
++ if (!new) {
++ kfree(thresholds->spare);
++ thresholds->spare = NULL;
++ }
+ unlock:
+ mutex_unlock(&memcg->thresholds_lock);
+ }
+diff --git a/mm/memory-failure.c b/mm/memory-failure.c
+index cb08faa72b77..3db082d82428 100644
+--- a/mm/memory-failure.c
++++ b/mm/memory-failure.c
+@@ -1523,7 +1523,7 @@ static int get_any_page(struct page *page, unsigned long pfn, int flags)
+ * Did it turn free?
+ */
+ ret = __get_any_page(page, pfn, 0);
+- if (!PageLRU(page)) {
++ if (ret == 1 && !PageLRU(page)) {
+ /* Drop page reference which is from __get_any_page() */
+ put_page(page);
+ pr_info("soft_offline: %#lx: unknown non LRU page type %lx\n",
+diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
+index efeb4871b7e3..723978c6f8ab 100644
+--- a/mm/memory_hotplug.c
++++ b/mm/memory_hotplug.c
+@@ -1209,23 +1209,30 @@ int is_mem_section_removable(unsigned long start_pfn, unsigned long nr_pages)
+ */
+ static int test_pages_in_a_zone(unsigned long start_pfn, unsigned long end_pfn)
+ {
+- unsigned long pfn;
++ unsigned long pfn, sec_end_pfn;
+ struct zone *zone = NULL;
+ struct page *page;
+ int i;
+- for (pfn = start_pfn;
++ for (pfn = start_pfn, sec_end_pfn = SECTION_ALIGN_UP(start_pfn);
+ pfn < end_pfn;
+- pfn += MAX_ORDER_NR_PAGES) {
+- i = 0;
+- /* This is just a CONFIG_HOLES_IN_ZONE check.*/
+- while ((i < MAX_ORDER_NR_PAGES) && !pfn_valid_within(pfn + i))
+- i++;
+- if (i == MAX_ORDER_NR_PAGES)
++ pfn = sec_end_pfn + 1, sec_end_pfn += PAGES_PER_SECTION) {
++ /* Make sure the memory section is present first */
++ if (!present_section_nr(pfn_to_section_nr(pfn)))
+ continue;
+- page = pfn_to_page(pfn + i);
+- if (zone && page_zone(page) != zone)
+- return 0;
+- zone = page_zone(page);
++ for (; pfn < sec_end_pfn && pfn < end_pfn;
++ pfn += MAX_ORDER_NR_PAGES) {
++ i = 0;
++ /* This is just a CONFIG_HOLES_IN_ZONE check.*/
++ while ((i < MAX_ORDER_NR_PAGES) &&
++ !pfn_valid_within(pfn + i))
++ i++;
++ if (i == MAX_ORDER_NR_PAGES)
++ continue;
++ page = pfn_to_page(pfn + i);
++ if (zone && page_zone(page) != zone)
++ return 0;
++ zone = page_zone(page);
++ }
+ }
+ return 1;
+ }
+diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
+index fd26d0433509..e739825be8b3 100644
+--- a/mm/process_vm_access.c
++++ b/mm/process_vm_access.c
+@@ -298,7 +298,7 @@ static ssize_t process_vm_rw_core(pid_t pid, const struct iovec *lvec,
+ goto free_proc_pages;
+ }
+
+- mm = mm_access(task, PTRACE_MODE_ATTACH);
++ mm = mm_access(task, PTRACE_MODE_ATTACH_REALCREDS);
+ if (!mm || IS_ERR(mm)) {
+ rc = IS_ERR(mm) ? PTR_ERR(mm) : -ESRCH;
+ /*
+diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter
+index 6129020c41a9..81228a443122 100755
+--- a/scripts/bloat-o-meter
++++ b/scripts/bloat-o-meter
+@@ -55,8 +55,8 @@ for name in common:
+ delta.sort()
+ delta.reverse()
+
+-print "add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
+- (add, remove, grow, shrink, up, -down, up-down)
+-print "%-40s %7s %7s %+7s" % ("function", "old", "new", "delta")
++print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
++ (add, remove, grow, shrink, up, -down, up-down))
++print("%-40s %7s %7s %+7s" % ("function", "old", "new", "delta"))
+ for d, n in delta:
+- if d: print "%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d)
++ if d: print("%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d))
+diff --git a/security/commoncap.c b/security/commoncap.c
+index 963dc5981661..a484506445d7 100644
+--- a/security/commoncap.c
++++ b/security/commoncap.c
+@@ -142,12 +142,17 @@ int cap_ptrace_access_check(struct task_struct *child, unsigned int mode)
+ {
+ int ret = 0;
+ const struct cred *cred, *child_cred;
++ const kernel_cap_t *caller_caps;
+
+ rcu_read_lock();
+ cred = current_cred();
+ child_cred = __task_cred(child);
++ if (mode & PTRACE_MODE_FSCREDS)
++ caller_caps = &cred->cap_effective;
++ else
++ caller_caps = &cred->cap_permitted;
+ if (cred->user_ns == child_cred->user_ns &&
+- cap_issubset(child_cred->cap_permitted, cred->cap_permitted))
++ cap_issubset(child_cred->cap_permitted, *caller_caps))
+ goto out;
+ if (ns_capable(child_cred->user_ns, CAP_SYS_PTRACE))
+ goto out;
+diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
+index dac296a7faad..3f2b4b7f2ec9 100644
+--- a/sound/core/compress_offload.c
++++ b/sound/core/compress_offload.c
+@@ -44,6 +44,13 @@
+ #include <sound/compress_offload.h>
+ #include <sound/compress_driver.h>
+
++/* struct snd_compr_codec_caps overflows the ioctl bit size for some
++ * architectures, so we need to disable the relevant ioctls.
++ */
++#if _IOC_SIZEBITS < 14
++#define COMPR_CODEC_CAPS_OVERFLOW
++#endif
++
+ /* TODO:
+ * - add substream support for multiple devices in case of
+ * SND_DYNAMIC_MINORS is not used
+@@ -439,6 +446,7 @@ out:
+ return retval;
+ }
+
++#ifndef COMPR_CODEC_CAPS_OVERFLOW
+ static int
+ snd_compr_get_codec_caps(struct snd_compr_stream *stream, unsigned long arg)
+ {
+@@ -462,6 +470,7 @@ out:
+ kfree(caps);
+ return retval;
+ }
++#endif /* !COMPR_CODEC_CAPS_OVERFLOW */
+
+ /* revisit this with snd_pcm_preallocate_xxx */
+ static int snd_compr_allocate_buffer(struct snd_compr_stream *stream,
+@@ -803,9 +812,11 @@ static long snd_compr_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
+ case _IOC_NR(SNDRV_COMPRESS_GET_CAPS):
+ retval = snd_compr_get_caps(stream, arg);
+ break;
++#ifndef COMPR_CODEC_CAPS_OVERFLOW
+ case _IOC_NR(SNDRV_COMPRESS_GET_CODEC_CAPS):
+ retval = snd_compr_get_codec_caps(stream, arg);
+ break;
++#endif
+ case _IOC_NR(SNDRV_COMPRESS_SET_PARAMS):
+ retval = snd_compr_set_params(stream, arg);
+ break;
+diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
+index 4c1cc51772e6..7417f96cea6e 100644
+--- a/sound/core/oss/pcm_oss.c
++++ b/sound/core/oss/pcm_oss.c
+@@ -834,7 +834,8 @@ static int choose_rate(struct snd_pcm_substream *substream,
+ return snd_pcm_hw_param_near(substream, params, SNDRV_PCM_HW_PARAM_RATE, best_rate, NULL);
+ }
+
+-static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
++static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream,
++ bool trylock)
+ {
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_pcm_hw_params *params, *sparams;
+@@ -848,7 +849,10 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
+ struct snd_mask sformat_mask;
+ struct snd_mask mask;
+
+- if (mutex_lock_interruptible(&runtime->oss.params_lock))
++ if (trylock) {
++ if (!(mutex_trylock(&runtime->oss.params_lock)))
++ return -EAGAIN;
++ } else if (mutex_lock_interruptible(&runtime->oss.params_lock))
+ return -EINTR;
+ sw_params = kmalloc(sizeof(*sw_params), GFP_KERNEL);
+ params = kmalloc(sizeof(*params), GFP_KERNEL);
+@@ -1091,7 +1095,7 @@ static int snd_pcm_oss_get_active_substream(struct snd_pcm_oss_file *pcm_oss_fil
+ if (asubstream == NULL)
+ asubstream = substream;
+ if (substream->runtime->oss.params) {
+- err = snd_pcm_oss_change_params(substream);
++ err = snd_pcm_oss_change_params(substream, false);
+ if (err < 0)
+ return err;
+ }
+@@ -1130,7 +1134,7 @@ static int snd_pcm_oss_make_ready(struct snd_pcm_substream *substream)
+ return 0;
+ runtime = substream->runtime;
+ if (runtime->oss.params) {
+- err = snd_pcm_oss_change_params(substream);
++ err = snd_pcm_oss_change_params(substream, false);
+ if (err < 0)
+ return err;
+ }
+@@ -2168,7 +2172,7 @@ static int snd_pcm_oss_get_space(struct snd_pcm_oss_file *pcm_oss_file, int stre
+ runtime = substream->runtime;
+
+ if (runtime->oss.params &&
+- (err = snd_pcm_oss_change_params(substream)) < 0)
++ (err = snd_pcm_oss_change_params(substream, false)) < 0)
+ return err;
+
+ info.fragsize = runtime->oss.period_bytes;
+@@ -2804,7 +2808,12 @@ static int snd_pcm_oss_mmap(struct file *file, struct vm_area_struct *area)
+ return -EIO;
+
+ if (runtime->oss.params) {
+- if ((err = snd_pcm_oss_change_params(substream)) < 0)
++ /* use mutex_trylock() for params_lock for avoiding a deadlock
++ * between mmap_sem and params_lock taken by
++ * copy_from/to_user() in snd_pcm_oss_write/read()
++ */
++ err = snd_pcm_oss_change_params(substream, true);
++ if (err < 0)
+ return err;
+ }
+ #ifdef CONFIG_SND_PCM_OSS_PLUGINS
+diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
+index 7b596b5751db..500765f20843 100644
+--- a/sound/core/rawmidi.c
++++ b/sound/core/rawmidi.c
+@@ -934,31 +934,36 @@ static long snd_rawmidi_kernel_read1(struct snd_rawmidi_substream *substream,
+ unsigned long flags;
+ long result = 0, count1;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
++ unsigned long appl_ptr;
+
++ spin_lock_irqsave(&runtime->lock, flags);
+ while (count > 0 && runtime->avail) {
+ count1 = runtime->buffer_size - runtime->appl_ptr;
+ if (count1 > count)
+ count1 = count;
+- spin_lock_irqsave(&runtime->lock, flags);
+ if (count1 > (int)runtime->avail)
+ count1 = runtime->avail;
++
++ /* update runtime->appl_ptr before unlocking for userbuf */
++ appl_ptr = runtime->appl_ptr;
++ runtime->appl_ptr += count1;
++ runtime->appl_ptr %= runtime->buffer_size;
++ runtime->avail -= count1;
++
+ if (kernelbuf)
+- memcpy(kernelbuf + result, runtime->buffer + runtime->appl_ptr, count1);
++ memcpy(kernelbuf + result, runtime->buffer + appl_ptr, count1);
+ if (userbuf) {
+ spin_unlock_irqrestore(&runtime->lock, flags);
+ if (copy_to_user(userbuf + result,
+- runtime->buffer + runtime->appl_ptr, count1)) {
++ runtime->buffer + appl_ptr, count1)) {
+ return result > 0 ? result : -EFAULT;
+ }
+ spin_lock_irqsave(&runtime->lock, flags);
+ }
+- runtime->appl_ptr += count1;
+- runtime->appl_ptr %= runtime->buffer_size;
+- runtime->avail -= count1;
+- spin_unlock_irqrestore(&runtime->lock, flags);
+ result += count1;
+ count -= count1;
+ }
++ spin_unlock_irqrestore(&runtime->lock, flags);
+ return result;
+ }
+
+@@ -1161,8 +1166,9 @@ static long snd_rawmidi_kernel_write1(struct snd_rawmidi_substream *substream,
+ unsigned long flags;
+ long count1, result;
+ struct snd_rawmidi_runtime *runtime = substream->runtime;
++ unsigned long appl_ptr;
+
+- if (snd_BUG_ON(!kernelbuf && !userbuf))
++ if (!kernelbuf && !userbuf)
+ return -EINVAL;
+ if (snd_BUG_ON(!runtime->buffer))
+ return -EINVAL;
+@@ -1181,12 +1187,19 @@ static long snd_rawmidi_kernel_write1(struct snd_rawmidi_substream *substream,
+ count1 = count;
+ if (count1 > (long)runtime->avail)
+ count1 = runtime->avail;
++
++ /* update runtime->appl_ptr before unlocking for userbuf */
++ appl_ptr = runtime->appl_ptr;
++ runtime->appl_ptr += count1;
++ runtime->appl_ptr %= runtime->buffer_size;
++ runtime->avail -= count1;
++
+ if (kernelbuf)
+- memcpy(runtime->buffer + runtime->appl_ptr,
++ memcpy(runtime->buffer + appl_ptr,
+ kernelbuf + result, count1);
+ else if (userbuf) {
+ spin_unlock_irqrestore(&runtime->lock, flags);
+- if (copy_from_user(runtime->buffer + runtime->appl_ptr,
++ if (copy_from_user(runtime->buffer + appl_ptr,
+ userbuf + result, count1)) {
+ spin_lock_irqsave(&runtime->lock, flags);
+ result = result > 0 ? result : -EFAULT;
+@@ -1194,9 +1207,6 @@ static long snd_rawmidi_kernel_write1(struct snd_rawmidi_substream *substream,
+ }
+ spin_lock_irqsave(&runtime->lock, flags);
+ }
+- runtime->appl_ptr += count1;
+- runtime->appl_ptr %= runtime->buffer_size;
+- runtime->avail -= count1;
+ result += count1;
+ count -= count1;
+ }
+diff --git a/sound/core/seq/oss/seq_oss_synth.c b/sound/core/seq/oss/seq_oss_synth.c
+index c5b773a1eea9..4a09c3085ca4 100644
+--- a/sound/core/seq/oss/seq_oss_synth.c
++++ b/sound/core/seq/oss/seq_oss_synth.c
+@@ -310,7 +310,7 @@ snd_seq_oss_synth_cleanup(struct seq_oss_devinfo *dp)
+ struct seq_oss_synth *rec;
+ struct seq_oss_synthinfo *info;
+
+- if (snd_BUG_ON(dp->max_synthdev >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS))
++ if (snd_BUG_ON(dp->max_synthdev > SNDRV_SEQ_OSS_MAX_SYNTH_DEVS))
+ return;
+ for (i = 0; i < dp->max_synthdev; i++) {
+ info = &dp->synths[i];
+diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c
+index ecfbf5f39d38..08865dcbf5f1 100644
+--- a/sound/core/seq/seq_clientmgr.c
++++ b/sound/core/seq/seq_clientmgr.c
+@@ -678,6 +678,9 @@ static int deliver_to_subscribers(struct snd_seq_client *client,
+ else
+ down_read(&grp->list_mutex);
+ list_for_each_entry(subs, &grp->list_head, src_list) {
++ /* both ports ready? */
++ if (atomic_read(&subs->ref_count) != 2)
++ continue;
+ event->dest = subs->info.dest;
+ if (subs->info.flags & SNDRV_SEQ_PORT_SUBS_TIMESTAMP)
+ /* convert time according to flag with subscription */
+diff --git a/sound/core/seq/seq_ports.c b/sound/core/seq/seq_ports.c
+index 9516e5ce3aad..ee0522a8f730 100644
+--- a/sound/core/seq/seq_ports.c
++++ b/sound/core/seq/seq_ports.c
+@@ -175,10 +175,6 @@ struct snd_seq_client_port *snd_seq_create_port(struct snd_seq_client *client,
+ }
+
+ /* */
+-enum group_type {
+- SRC_LIST, DEST_LIST
+-};
+-
+ static int subscribe_port(struct snd_seq_client *client,
+ struct snd_seq_client_port *port,
+ struct snd_seq_port_subs_info *grp,
+@@ -205,6 +201,20 @@ static struct snd_seq_client_port *get_client_port(struct snd_seq_addr *addr,
+ return NULL;
+ }
+
++static void delete_and_unsubscribe_port(struct snd_seq_client *client,
++ struct snd_seq_client_port *port,
++ struct snd_seq_subscribers *subs,
++ bool is_src, bool ack);
++
++static inline struct snd_seq_subscribers *
++get_subscriber(struct list_head *p, bool is_src)
++{
++ if (is_src)
++ return list_entry(p, struct snd_seq_subscribers, src_list);
++ else
++ return list_entry(p, struct snd_seq_subscribers, dest_list);
++}
++
+ /*
+ * remove all subscribers on the list
+ * this is called from port_delete, for each src and dest list.
+@@ -212,7 +222,7 @@ static struct snd_seq_client_port *get_client_port(struct snd_seq_addr *addr,
+ static void clear_subscriber_list(struct snd_seq_client *client,
+ struct snd_seq_client_port *port,
+ struct snd_seq_port_subs_info *grp,
+- int grptype)
++ int is_src)
+ {
+ struct list_head *p, *n;
+
+@@ -221,15 +231,13 @@ static void clear_subscriber_list(struct snd_seq_client *client,
+ struct snd_seq_client *c;
+ struct snd_seq_client_port *aport;
+
+- if (grptype == SRC_LIST) {
+- subs = list_entry(p, struct snd_seq_subscribers, src_list);
++ subs = get_subscriber(p, is_src);
++ if (is_src)
+ aport = get_client_port(&subs->info.dest, &c);
+- } else {
+- subs = list_entry(p, struct snd_seq_subscribers, dest_list);
++ else
+ aport = get_client_port(&subs->info.sender, &c);
+- }
+- list_del(p);
+- unsubscribe_port(client, port, grp, &subs->info, 0);
++ delete_and_unsubscribe_port(client, port, subs, is_src, false);
++
+ if (!aport) {
+ /* looks like the connected port is being deleted.
+ * we decrease the counter, and when both ports are deleted
+@@ -237,21 +245,14 @@ static void clear_subscriber_list(struct snd_seq_client *client,
+ */
+ if (atomic_dec_and_test(&subs->ref_count))
+ kfree(subs);
+- } else {
+- /* ok we got the connected port */
+- struct snd_seq_port_subs_info *agrp;
+- agrp = (grptype == SRC_LIST) ? &aport->c_dest : &aport->c_src;
+- down_write(&agrp->list_mutex);
+- if (grptype == SRC_LIST)
+- list_del(&subs->dest_list);
+- else
+- list_del(&subs->src_list);
+- up_write(&agrp->list_mutex);
+- unsubscribe_port(c, aport, agrp, &subs->info, 1);
+- kfree(subs);
+- snd_seq_port_unlock(aport);
+- snd_seq_client_unlock(c);
++ continue;
+ }
++
++ /* ok we got the connected port */
++ delete_and_unsubscribe_port(c, aport, subs, !is_src, true);
++ kfree(subs);
++ snd_seq_port_unlock(aport);
++ snd_seq_client_unlock(c);
+ }
+ }
+
+@@ -264,8 +265,8 @@ static int port_delete(struct snd_seq_client *client,
+ snd_use_lock_sync(&port->use_lock);
+
+ /* clear subscribers info */
+- clear_subscriber_list(client, port, &port->c_src, SRC_LIST);
+- clear_subscriber_list(client, port, &port->c_dest, DEST_LIST);
++ clear_subscriber_list(client, port, &port->c_src, true);
++ clear_subscriber_list(client, port, &port->c_dest, false);
+
+ if (port->private_free)
+ port->private_free(port->private_data);
+@@ -484,85 +485,123 @@ static int match_subs_info(struct snd_seq_port_subscribe *r,
+ return 0;
+ }
+
+-
+-/* connect two ports */
+-int snd_seq_port_connect(struct snd_seq_client *connector,
+- struct snd_seq_client *src_client,
+- struct snd_seq_client_port *src_port,
+- struct snd_seq_client *dest_client,
+- struct snd_seq_client_port *dest_port,
+- struct snd_seq_port_subscribe *info)
++static int check_and_subscribe_port(struct snd_seq_client *client,
++ struct snd_seq_client_port *port,
++ struct snd_seq_subscribers *subs,
++ bool is_src, bool exclusive, bool ack)
+ {
+- struct snd_seq_port_subs_info *src = &src_port->c_src;
+- struct snd_seq_port_subs_info *dest = &dest_port->c_dest;
+- struct snd_seq_subscribers *subs, *s;
+- int err, src_called = 0;
+- unsigned long flags;
+- int exclusive;
+-
+- subs = kzalloc(sizeof(*subs), GFP_KERNEL);
+- if (! subs)
+- return -ENOMEM;
+-
+- subs->info = *info;
+- atomic_set(&subs->ref_count, 2);
++ struct snd_seq_port_subs_info *grp;
++ struct list_head *p;
++ struct snd_seq_subscribers *s;
++ int err;
+
+- down_write(&src->list_mutex);
+- down_write_nested(&dest->list_mutex, SINGLE_DEPTH_NESTING);
+-
+- exclusive = info->flags & SNDRV_SEQ_PORT_SUBS_EXCLUSIVE ? 1 : 0;
++ grp = is_src ? &port->c_src : &port->c_dest;
+ err = -EBUSY;
++ down_write(&grp->list_mutex);
+ if (exclusive) {
+- if (! list_empty(&src->list_head) || ! list_empty(&dest->list_head))
++ if (!list_empty(&grp->list_head))
+ goto __error;
+ } else {
+- if (src->exclusive || dest->exclusive)
++ if (grp->exclusive)
+ goto __error;
+ /* check whether already exists */
+- list_for_each_entry(s, &src->list_head, src_list) {
+- if (match_subs_info(info, &s->info))
+- goto __error;
+- }
+- list_for_each_entry(s, &dest->list_head, dest_list) {
+- if (match_subs_info(info, &s->info))
++ list_for_each(p, &grp->list_head) {
++ s = get_subscriber(p, is_src);
++ if (match_subs_info(&subs->info, &s->info))
+ goto __error;
+ }
+ }
+
+- if ((err = subscribe_port(src_client, src_port, src, info,
+- connector->number != src_client->number)) < 0)
+- goto __error;
+- src_called = 1;
+-
+- if ((err = subscribe_port(dest_client, dest_port, dest, info,
+- connector->number != dest_client->number)) < 0)
++ err = subscribe_port(client, port, grp, &subs->info, ack);
++ if (err < 0) {
++ grp->exclusive = 0;
+ goto __error;
++ }
+
+ /* add to list */
+- write_lock_irqsave(&src->list_lock, flags);
+- // write_lock(&dest->list_lock); // no other lock yet
+- list_add_tail(&subs->src_list, &src->list_head);
+- list_add_tail(&subs->dest_list, &dest->list_head);
+- // write_unlock(&dest->list_lock); // no other lock yet
+- write_unlock_irqrestore(&src->list_lock, flags);
++ write_lock_irq(&grp->list_lock);
++ if (is_src)
++ list_add_tail(&subs->src_list, &grp->list_head);
++ else
++ list_add_tail(&subs->dest_list, &grp->list_head);
++ grp->exclusive = exclusive;
++ atomic_inc(&subs->ref_count);
++ write_unlock_irq(&grp->list_lock);
++ err = 0;
+
+- src->exclusive = dest->exclusive = exclusive;
++ __error:
++ up_write(&grp->list_mutex);
++ return err;
++}
++
++static void delete_and_unsubscribe_port(struct snd_seq_client *client,
++ struct snd_seq_client_port *port,
++ struct snd_seq_subscribers *subs,
++ bool is_src, bool ack)
++{
++ struct snd_seq_port_subs_info *grp;
++ struct list_head *list;
++ bool empty;
++
++ grp = is_src ? &port->c_src : &port->c_dest;
++ list = is_src ? &subs->src_list : &subs->dest_list;
++ down_write(&grp->list_mutex);
++ write_lock_irq(&grp->list_lock);
++ empty = list_empty(list);
++ if (!empty)
++ list_del_init(list);
++ grp->exclusive = 0;
++ write_unlock_irq(&grp->list_lock);
++ up_write(&grp->list_mutex);
++
++ if (!empty)
++ unsubscribe_port(client, port, grp, &subs->info, ack);
++}
++
++/* connect two ports */
++int snd_seq_port_connect(struct snd_seq_client *connector,
++ struct snd_seq_client *src_client,
++ struct snd_seq_client_port *src_port,
++ struct snd_seq_client *dest_client,
++ struct snd_seq_client_port *dest_port,
++ struct snd_seq_port_subscribe *info)
++{
++ struct snd_seq_subscribers *subs;
++ bool exclusive;
++ int err;
++
++ subs = kzalloc(sizeof(*subs), GFP_KERNEL);
++ if (!subs)
++ return -ENOMEM;
++
++ subs->info = *info;
++ atomic_set(&subs->ref_count, 0);
++ INIT_LIST_HEAD(&subs->src_list);
++ INIT_LIST_HEAD(&subs->dest_list);
++
++ exclusive = !!(info->flags & SNDRV_SEQ_PORT_SUBS_EXCLUSIVE);
++
++ err = check_and_subscribe_port(src_client, src_port, subs, true,
++ exclusive,
++ connector->number != src_client->number);
++ if (err < 0)
++ goto error;
++ err = check_and_subscribe_port(dest_client, dest_port, subs, false,
++ exclusive,
++ connector->number != dest_client->number);
++ if (err < 0)
++ goto error_dest;
+
+- up_write(&dest->list_mutex);
+- up_write(&src->list_mutex);
+ return 0;
+
+- __error:
+- if (src_called)
+- unsubscribe_port(src_client, src_port, src, info,
+- connector->number != src_client->number);
++ error_dest:
++ delete_and_unsubscribe_port(src_client, src_port, subs, true,
++ connector->number != src_client->number);
++ error:
+ kfree(subs);
+- up_write(&dest->list_mutex);
+- up_write(&src->list_mutex);
+ return err;
+ }
+
+-
+ /* remove the connection */
+ int snd_seq_port_disconnect(struct snd_seq_client *connector,
+ struct snd_seq_client *src_client,
+@@ -572,37 +611,28 @@ int snd_seq_port_disconnect(struct snd_seq_client *connector,
+ struct snd_seq_port_subscribe *info)
+ {
+ struct snd_seq_port_subs_info *src = &src_port->c_src;
+- struct snd_seq_port_subs_info *dest = &dest_port->c_dest;
+ struct snd_seq_subscribers *subs;
+ int err = -ENOENT;
+- unsigned long flags;
+
+ down_write(&src->list_mutex);
+- down_write_nested(&dest->list_mutex, SINGLE_DEPTH_NESTING);
+-
+ /* look for the connection */
+ list_for_each_entry(subs, &src->list_head, src_list) {
+ if (match_subs_info(info, &subs->info)) {
+- write_lock_irqsave(&src->list_lock, flags);
+- // write_lock(&dest->list_lock); // no lock yet
+- list_del(&subs->src_list);
+- list_del(&subs->dest_list);
+- // write_unlock(&dest->list_lock);
+- write_unlock_irqrestore(&src->list_lock, flags);
+- src->exclusive = dest->exclusive = 0;
+- unsubscribe_port(src_client, src_port, src, info,
+- connector->number != src_client->number);
+- unsubscribe_port(dest_client, dest_port, dest, info,
+- connector->number != dest_client->number);
+- kfree(subs);
++ atomic_dec(&subs->ref_count); /* mark as not ready */
+ err = 0;
+ break;
+ }
+ }
+-
+- up_write(&dest->list_mutex);
+ up_write(&src->list_mutex);
+- return err;
++ if (err < 0)
++ return err;
++
++ delete_and_unsubscribe_port(src_client, src_port, subs, true,
++ connector->number != src_client->number);
++ delete_and_unsubscribe_port(dest_client, dest_port, subs, false,
++ connector->number != dest_client->number);
++ kfree(subs);
++ return 0;
+ }
+
+
+diff --git a/sound/core/seq/seq_timer.c b/sound/core/seq/seq_timer.c
+index 24d44b2f61ac..6ec30a98a92a 100644
+--- a/sound/core/seq/seq_timer.c
++++ b/sound/core/seq/seq_timer.c
+@@ -92,6 +92,9 @@ void snd_seq_timer_delete(struct snd_seq_timer **tmr)
+
+ void snd_seq_timer_defaults(struct snd_seq_timer * tmr)
+ {
++ unsigned long flags;
++
++ spin_lock_irqsave(&tmr->lock, flags);
+ /* setup defaults */
+ tmr->ppq = 96; /* 96 PPQ */
+ tmr->tempo = 500000; /* 120 BPM */
+@@ -107,21 +110,25 @@ void snd_seq_timer_defaults(struct snd_seq_timer * tmr)
+ tmr->preferred_resolution = seq_default_timer_resolution;
+
+ tmr->skew = tmr->skew_base = SKEW_BASE;
++ spin_unlock_irqrestore(&tmr->lock, flags);
+ }
+
+-void snd_seq_timer_reset(struct snd_seq_timer * tmr)
++static void seq_timer_reset(struct snd_seq_timer *tmr)
+ {
+- unsigned long flags;
+-
+- spin_lock_irqsave(&tmr->lock, flags);
+-
+ /* reset time & songposition */
+ tmr->cur_time.tv_sec = 0;
+ tmr->cur_time.tv_nsec = 0;
+
+ tmr->tick.cur_tick = 0;
+ tmr->tick.fraction = 0;
++}
++
++void snd_seq_timer_reset(struct snd_seq_timer *tmr)
++{
++ unsigned long flags;
+
++ spin_lock_irqsave(&tmr->lock, flags);
++ seq_timer_reset(tmr);
+ spin_unlock_irqrestore(&tmr->lock, flags);
+ }
+
+@@ -140,8 +147,11 @@ static void snd_seq_timer_interrupt(struct snd_timer_instance *timeri,
+ tmr = q->timer;
+ if (tmr == NULL)
+ return;
+- if (!tmr->running)
++ spin_lock_irqsave(&tmr->lock, flags);
++ if (!tmr->running) {
++ spin_unlock_irqrestore(&tmr->lock, flags);
+ return;
++ }
+
+ resolution *= ticks;
+ if (tmr->skew != tmr->skew_base) {
+@@ -150,8 +160,6 @@ static void snd_seq_timer_interrupt(struct snd_timer_instance *timeri,
+ (((resolution & 0xffff) * tmr->skew) >> 16);
+ }
+
+- spin_lock_irqsave(&tmr->lock, flags);
+-
+ /* update timer */
+ snd_seq_inc_time_nsec(&tmr->cur_time, resolution);
+
+@@ -298,26 +306,30 @@ int snd_seq_timer_open(struct snd_seq_queue *q)
+ t->callback = snd_seq_timer_interrupt;
+ t->callback_data = q;
+ t->flags |= SNDRV_TIMER_IFLG_AUTO;
++ spin_lock_irq(&tmr->lock);
+ tmr->timeri = t;
++ spin_unlock_irq(&tmr->lock);
+ return 0;
+ }
+
+ int snd_seq_timer_close(struct snd_seq_queue *q)
+ {
+ struct snd_seq_timer *tmr;
++ struct snd_timer_instance *t;
+
+ tmr = q->timer;
+ if (snd_BUG_ON(!tmr))
+ return -EINVAL;
+- if (tmr->timeri) {
+- snd_timer_stop(tmr->timeri);
+- snd_timer_close(tmr->timeri);
+- tmr->timeri = NULL;
+- }
++ spin_lock_irq(&tmr->lock);
++ t = tmr->timeri;
++ tmr->timeri = NULL;
++ spin_unlock_irq(&tmr->lock);
++ if (t)
++ snd_timer_close(t);
+ return 0;
+ }
+
+-int snd_seq_timer_stop(struct snd_seq_timer * tmr)
++static int seq_timer_stop(struct snd_seq_timer *tmr)
+ {
+ if (! tmr->timeri)
+ return -EINVAL;
+@@ -328,6 +340,17 @@ int snd_seq_timer_stop(struct snd_seq_timer * tmr)
+ return 0;
+ }
+
++int snd_seq_timer_stop(struct snd_seq_timer *tmr)
++{
++ unsigned long flags;
++ int err;
++
++ spin_lock_irqsave(&tmr->lock, flags);
++ err = seq_timer_stop(tmr);
++ spin_unlock_irqrestore(&tmr->lock, flags);
++ return err;
++}
++
+ static int initialize_timer(struct snd_seq_timer *tmr)
+ {
+ struct snd_timer *t;
+@@ -360,13 +383,13 @@ static int initialize_timer(struct snd_seq_timer *tmr)
+ return 0;
+ }
+
+-int snd_seq_timer_start(struct snd_seq_timer * tmr)
++static int seq_timer_start(struct snd_seq_timer *tmr)
+ {
+ if (! tmr->timeri)
+ return -EINVAL;
+ if (tmr->running)
+- snd_seq_timer_stop(tmr);
+- snd_seq_timer_reset(tmr);
++ seq_timer_stop(tmr);
++ seq_timer_reset(tmr);
+ if (initialize_timer(tmr) < 0)
+ return -EINVAL;
+ snd_timer_start(tmr->timeri, tmr->ticks);
+@@ -375,14 +398,25 @@ int snd_seq_timer_start(struct snd_seq_timer * tmr)
+ return 0;
+ }
+
+-int snd_seq_timer_continue(struct snd_seq_timer * tmr)
++int snd_seq_timer_start(struct snd_seq_timer *tmr)
++{
++ unsigned long flags;
++ int err;
++
++ spin_lock_irqsave(&tmr->lock, flags);
++ err = seq_timer_start(tmr);
++ spin_unlock_irqrestore(&tmr->lock, flags);
++ return err;
++}
++
++static int seq_timer_continue(struct snd_seq_timer *tmr)
+ {
+ if (! tmr->timeri)
+ return -EINVAL;
+ if (tmr->running)
+ return -EBUSY;
+ if (! tmr->initialized) {
+- snd_seq_timer_reset(tmr);
++ seq_timer_reset(tmr);
+ if (initialize_timer(tmr) < 0)
+ return -EINVAL;
+ }
+@@ -392,11 +426,24 @@ int snd_seq_timer_continue(struct snd_seq_timer * tmr)
+ return 0;
+ }
+
++int snd_seq_timer_continue(struct snd_seq_timer *tmr)
++{
++ unsigned long flags;
++ int err;
++
++ spin_lock_irqsave(&tmr->lock, flags);
++ err = seq_timer_continue(tmr);
++ spin_unlock_irqrestore(&tmr->lock, flags);
++ return err;
++}
++
+ /* return current 'real' time. use timeofday() to get better granularity. */
+ snd_seq_real_time_t snd_seq_timer_get_cur_time(struct snd_seq_timer *tmr)
+ {
+ snd_seq_real_time_t cur_time;
++ unsigned long flags;
+
++ spin_lock_irqsave(&tmr->lock, flags);
+ cur_time = tmr->cur_time;
+ if (tmr->running) {
+ struct timeval tm;
+@@ -412,7 +459,7 @@ snd_seq_real_time_t snd_seq_timer_get_cur_time(struct snd_seq_timer *tmr)
+ }
+ snd_seq_sanity_real_time(&cur_time);
+ }
+-
++ spin_unlock_irqrestore(&tmr->lock, flags);
+ return cur_time;
+ }
+
+diff --git a/sound/core/seq/seq_virmidi.c b/sound/core/seq/seq_virmidi.c
+index 4b50e604276d..0fa691e01384 100644
+--- a/sound/core/seq/seq_virmidi.c
++++ b/sound/core/seq/seq_virmidi.c
+@@ -254,9 +254,13 @@ static int snd_virmidi_output_open(struct snd_rawmidi_substream *substream)
+ */
+ static int snd_virmidi_input_close(struct snd_rawmidi_substream *substream)
+ {
++ struct snd_virmidi_dev *rdev = substream->rmidi->private_data;
+ struct snd_virmidi *vmidi = substream->runtime->private_data;
+- snd_midi_event_free(vmidi->parser);
++
++ write_lock_irq(&rdev->filelist_lock);
+ list_del(&vmidi->list);
++ write_unlock_irq(&rdev->filelist_lock);
++ snd_midi_event_free(vmidi->parser);
+ substream->runtime->private_data = NULL;
+ kfree(vmidi);
+ return 0;
+diff --git a/sound/core/timer.c b/sound/core/timer.c
+index 4e436fe53afa..d90d8f4b85fe 100644
+--- a/sound/core/timer.c
++++ b/sound/core/timer.c
+@@ -300,8 +300,7 @@ int snd_timer_open(struct snd_timer_instance **ti,
+ return 0;
+ }
+
+-static int _snd_timer_stop(struct snd_timer_instance *timeri,
+- int keep_flag, int event);
++static int _snd_timer_stop(struct snd_timer_instance *timeri, int event);
+
+ /*
+ * close a timer instance
+@@ -343,7 +342,7 @@ int snd_timer_close(struct snd_timer_instance *timeri)
+ spin_unlock_irq(&timer->lock);
+ mutex_lock(®ister_mutex);
+ list_del(&timeri->open_list);
+- if (timer && list_empty(&timer->open_list_head) &&
++ if (list_empty(&timer->open_list_head) &&
+ timer->hw.close)
+ timer->hw.close(timer);
+ /* remove slave links */
+@@ -415,7 +414,7 @@ static void snd_timer_notify1(struct snd_timer_instance *ti, int event)
+ spin_lock_irqsave(&timer->lock, flags);
+ list_for_each_entry(ts, &ti->slave_active_head, active_list)
+ if (ts->ccallback)
+- ts->ccallback(ti, event + 100, &tstamp, resolution);
++ ts->ccallback(ts, event + 100, &tstamp, resolution);
+ spin_unlock_irqrestore(&timer->lock, flags);
+ }
+
+@@ -444,6 +443,10 @@ static int snd_timer_start_slave(struct snd_timer_instance *timeri)
+ unsigned long flags;
+
+ spin_lock_irqsave(&slave_active_lock, flags);
++ if (timeri->flags & SNDRV_TIMER_IFLG_RUNNING) {
++ spin_unlock_irqrestore(&slave_active_lock, flags);
++ return -EBUSY;
++ }
+ timeri->flags |= SNDRV_TIMER_IFLG_RUNNING;
+ if (timeri->master && timeri->timer) {
+ spin_lock(&timeri->timer->lock);
+@@ -468,23 +471,30 @@ int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks)
+ return -EINVAL;
+ if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE) {
+ result = snd_timer_start_slave(timeri);
+- snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_START);
++ if (result >= 0)
++ snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_START);
+ return result;
+ }
+ timer = timeri->timer;
+ if (timer == NULL)
+ return -EINVAL;
+ spin_lock_irqsave(&timer->lock, flags);
++ if (timeri->flags & (SNDRV_TIMER_IFLG_RUNNING |
++ SNDRV_TIMER_IFLG_START)) {
++ result = -EBUSY;
++ goto unlock;
++ }
+ timeri->ticks = timeri->cticks = ticks;
+ timeri->pticks = 0;
+ result = snd_timer_start1(timer, timeri, ticks);
++ unlock:
+ spin_unlock_irqrestore(&timer->lock, flags);
+- snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_START);
++ if (result >= 0)
++ snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_START);
+ return result;
+ }
+
+-static int _snd_timer_stop(struct snd_timer_instance * timeri,
+- int keep_flag, int event)
++static int _snd_timer_stop(struct snd_timer_instance *timeri, int event)
+ {
+ struct snd_timer *timer;
+ unsigned long flags;
+@@ -493,19 +503,30 @@ static int _snd_timer_stop(struct snd_timer_instance * timeri,
+ return -ENXIO;
+
+ if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE) {
+- if (!keep_flag) {
+- spin_lock_irqsave(&slave_active_lock, flags);
+- timeri->flags &= ~SNDRV_TIMER_IFLG_RUNNING;
+- list_del_init(&timeri->ack_list);
+- list_del_init(&timeri->active_list);
++ spin_lock_irqsave(&slave_active_lock, flags);
++ if (!(timeri->flags & SNDRV_TIMER_IFLG_RUNNING)) {
+ spin_unlock_irqrestore(&slave_active_lock, flags);
++ return -EBUSY;
+ }
++ if (timeri->timer)
++ spin_lock(&timeri->timer->lock);
++ timeri->flags &= ~SNDRV_TIMER_IFLG_RUNNING;
++ list_del_init(&timeri->ack_list);
++ list_del_init(&timeri->active_list);
++ if (timeri->timer)
++ spin_unlock(&timeri->timer->lock);
++ spin_unlock_irqrestore(&slave_active_lock, flags);
+ goto __end;
+ }
+ timer = timeri->timer;
+ if (!timer)
+ return -EINVAL;
+ spin_lock_irqsave(&timer->lock, flags);
++ if (!(timeri->flags & (SNDRV_TIMER_IFLG_RUNNING |
++ SNDRV_TIMER_IFLG_START))) {
++ spin_unlock_irqrestore(&timer->lock, flags);
++ return -EBUSY;
++ }
+ list_del_init(&timeri->ack_list);
+ list_del_init(&timeri->active_list);
+ if ((timeri->flags & SNDRV_TIMER_IFLG_RUNNING) &&
+@@ -520,9 +541,7 @@ static int _snd_timer_stop(struct snd_timer_instance * timeri,
+ }
+ }
+ }
+- if (!keep_flag)
+- timeri->flags &=
+- ~(SNDRV_TIMER_IFLG_RUNNING | SNDRV_TIMER_IFLG_START);
++ timeri->flags &= ~(SNDRV_TIMER_IFLG_RUNNING | SNDRV_TIMER_IFLG_START);
+ spin_unlock_irqrestore(&timer->lock, flags);
+ __end:
+ if (event != SNDRV_TIMER_EVENT_RESOLUTION)
+@@ -541,7 +560,7 @@ int snd_timer_stop(struct snd_timer_instance *timeri)
+ unsigned long flags;
+ int err;
+
+- err = _snd_timer_stop(timeri, 0, SNDRV_TIMER_EVENT_STOP);
++ err = _snd_timer_stop(timeri, SNDRV_TIMER_EVENT_STOP);
+ if (err < 0)
+ return err;
+ timer = timeri->timer;
+@@ -571,10 +590,15 @@ int snd_timer_continue(struct snd_timer_instance *timeri)
+ if (! timer)
+ return -EINVAL;
+ spin_lock_irqsave(&timer->lock, flags);
++ if (timeri->flags & SNDRV_TIMER_IFLG_RUNNING) {
++ result = -EBUSY;
++ goto unlock;
++ }
+ if (!timeri->cticks)
+ timeri->cticks = 1;
+ timeri->pticks = 0;
+ result = snd_timer_start1(timer, timeri, timer->sticks);
++ unlock:
+ spin_unlock_irqrestore(&timer->lock, flags);
+ snd_timer_notify1(timeri, SNDRV_TIMER_EVENT_CONTINUE);
+ return result;
+@@ -585,7 +609,7 @@ int snd_timer_continue(struct snd_timer_instance *timeri)
+ */
+ int snd_timer_pause(struct snd_timer_instance * timeri)
+ {
+- return _snd_timer_stop(timeri, 0, SNDRV_TIMER_EVENT_PAUSE);
++ return _snd_timer_stop(timeri, SNDRV_TIMER_EVENT_PAUSE);
+ }
+
+ /*
+@@ -702,8 +726,8 @@ void snd_timer_interrupt(struct snd_timer * timer, unsigned long ticks_left)
+ ti->cticks = ti->ticks;
+ } else {
+ ti->flags &= ~SNDRV_TIMER_IFLG_RUNNING;
+- if (--timer->running)
+- list_del_init(&ti->active_list);
++ --timer->running;
++ list_del_init(&ti->active_list);
+ }
+ if ((timer->hw.flags & SNDRV_TIMER_HW_TASKLET) ||
+ (ti->flags & SNDRV_TIMER_IFLG_FAST))
+diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c
+index 915b4d7fbb23..8946cef245fc 100644
+--- a/sound/drivers/dummy.c
++++ b/sound/drivers/dummy.c
+@@ -109,6 +109,9 @@ struct dummy_timer_ops {
+ snd_pcm_uframes_t (*pointer)(struct snd_pcm_substream *);
+ };
+
++#define get_dummy_ops(substream) \
++ (*(const struct dummy_timer_ops **)(substream)->runtime->private_data)
++
+ struct dummy_model {
+ const char *name;
+ int (*playback_constraints)(struct snd_pcm_runtime *runtime);
+@@ -137,7 +140,6 @@ struct snd_dummy {
+ int iobox;
+ struct snd_kcontrol *cd_volume_ctl;
+ struct snd_kcontrol *cd_switch_ctl;
+- const struct dummy_timer_ops *timer_ops;
+ };
+
+ /*
+@@ -231,6 +233,8 @@ struct dummy_model *dummy_models[] = {
+ */
+
+ struct dummy_systimer_pcm {
++ /* ops must be the first item */
++ const struct dummy_timer_ops *timer_ops;
+ spinlock_t lock;
+ struct timer_list timer;
+ unsigned long base_time;
+@@ -368,6 +372,8 @@ static struct dummy_timer_ops dummy_systimer_ops = {
+ */
+
+ struct dummy_hrtimer_pcm {
++ /* ops must be the first item */
++ const struct dummy_timer_ops *timer_ops;
+ ktime_t base_time;
+ ktime_t period_time;
+ atomic_t running;
+@@ -494,31 +500,25 @@ static struct dummy_timer_ops dummy_hrtimer_ops = {
+
+ static int dummy_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
+ {
+- struct snd_dummy *dummy = snd_pcm_substream_chip(substream);
+-
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+- return dummy->timer_ops->start(substream);
++ return get_dummy_ops(substream)->start(substream);
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+- return dummy->timer_ops->stop(substream);
++ return get_dummy_ops(substream)->stop(substream);
+ }
+ return -EINVAL;
+ }
+
+ static int dummy_pcm_prepare(struct snd_pcm_substream *substream)
+ {
+- struct snd_dummy *dummy = snd_pcm_substream_chip(substream);
+-
+- return dummy->timer_ops->prepare(substream);
++ return get_dummy_ops(substream)->prepare(substream);
+ }
+
+ static snd_pcm_uframes_t dummy_pcm_pointer(struct snd_pcm_substream *substream)
+ {
+- struct snd_dummy *dummy = snd_pcm_substream_chip(substream);
+-
+- return dummy->timer_ops->pointer(substream);
++ return get_dummy_ops(substream)->pointer(substream);
+ }
+
+ static struct snd_pcm_hardware dummy_pcm_hardware = {
+@@ -564,17 +564,19 @@ static int dummy_pcm_open(struct snd_pcm_substream *substream)
+ struct snd_dummy *dummy = snd_pcm_substream_chip(substream);
+ struct dummy_model *model = dummy->model;
+ struct snd_pcm_runtime *runtime = substream->runtime;
++ const struct dummy_timer_ops *ops;
+ int err;
+
+- dummy->timer_ops = &dummy_systimer_ops;
++ ops = &dummy_systimer_ops;
+ #ifdef CONFIG_HIGH_RES_TIMERS
+ if (hrtimer)
+- dummy->timer_ops = &dummy_hrtimer_ops;
++ ops = &dummy_hrtimer_ops;
+ #endif
+
+- err = dummy->timer_ops->create(substream);
++ err = ops->create(substream);
+ if (err < 0)
+ return err;
++ get_dummy_ops(substream) = ops;
+
+ runtime->hw = dummy->pcm_hw;
+ if (substream->pcm->device & 1) {
+@@ -596,7 +598,7 @@ static int dummy_pcm_open(struct snd_pcm_substream *substream)
+ err = model->capture_constraints(substream->runtime);
+ }
+ if (err < 0) {
+- dummy->timer_ops->free(substream);
++ get_dummy_ops(substream)->free(substream);
+ return err;
+ }
+ return 0;
+@@ -604,8 +606,7 @@ static int dummy_pcm_open(struct snd_pcm_substream *substream)
+
+ static int dummy_pcm_close(struct snd_pcm_substream *substream)
+ {
+- struct snd_dummy *dummy = snd_pcm_substream_chip(substream);
+- dummy->timer_ops->free(substream);
++ get_dummy_ops(substream)->free(substream);
+ return 0;
+ }
+
+diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c
+index 3c90743fa50b..eef182bea2ad 100644
+--- a/sound/pci/hda/patch_cirrus.c
++++ b/sound/pci/hda/patch_cirrus.c
+@@ -617,6 +617,7 @@ enum {
+ CS4208_MAC_AUTO,
+ CS4208_MBA6,
+ CS4208_MBP11,
++ CS4208_MACMINI,
+ CS4208_GPIO0,
+ };
+
+@@ -624,6 +625,7 @@ static const struct hda_model_fixup cs4208_models[] = {
+ { .id = CS4208_GPIO0, .name = "gpio0" },
+ { .id = CS4208_MBA6, .name = "mba6" },
+ { .id = CS4208_MBP11, .name = "mbp11" },
++ { .id = CS4208_MACMINI, .name = "macmini" },
+ {}
+ };
+
+@@ -635,6 +637,7 @@ static const struct snd_pci_quirk cs4208_fixup_tbl[] = {
+ /* codec SSID matching */
+ static const struct snd_pci_quirk cs4208_mac_fixup_tbl[] = {
+ SND_PCI_QUIRK(0x106b, 0x5e00, "MacBookPro 11,2", CS4208_MBP11),
++ SND_PCI_QUIRK(0x106b, 0x6c00, "MacMini 7,1", CS4208_MACMINI),
+ SND_PCI_QUIRK(0x106b, 0x7100, "MacBookAir 6,1", CS4208_MBA6),
+ SND_PCI_QUIRK(0x106b, 0x7200, "MacBookAir 6,2", CS4208_MBA6),
+ SND_PCI_QUIRK(0x106b, 0x7b00, "MacBookPro 12,1", CS4208_MBP11),
+@@ -667,6 +670,24 @@ static void cs4208_fixup_mac(struct hda_codec *codec,
+ snd_hda_apply_fixup(codec, action);
+ }
+
++/* MacMini 7,1 has the inverted jack detection */
++static void cs4208_fixup_macmini(struct hda_codec *codec,
++ const struct hda_fixup *fix, int action)
++{
++ static const struct hda_pintbl pincfgs[] = {
++ { 0x18, 0x00ab9150 }, /* mic (audio-in) jack: disable detect */
++ { 0x21, 0x004be140 }, /* SPDIF: disable detect */
++ { }
++ };
++
++ if (action == HDA_FIXUP_ACT_PRE_PROBE) {
++ /* HP pin (0x10) has an inverted detection */
++ codec->inv_jack_detect = 1;
++ /* disable the bogus Mic and SPDIF jack detections */
++ snd_hda_apply_pincfgs(codec, pincfgs);
++ }
++}
++
+ static int cs4208_spdif_sw_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+ {
+@@ -710,6 +731,12 @@ static const struct hda_fixup cs4208_fixups[] = {
+ .chained = true,
+ .chain_id = CS4208_GPIO0,
+ },
++ [CS4208_MACMINI] = {
++ .type = HDA_FIXUP_FUNC,
++ .v.func = cs4208_fixup_macmini,
++ .chained = true,
++ .chain_id = CS4208_GPIO0,
++ },
+ [CS4208_GPIO0] = {
+ .type = HDA_FIXUP_FUNC,
+ .v.func = cs4208_fixup_gpio0,
+diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
+index 830021f4aa06..c527d9756ef5 100644
+--- a/sound/pci/hda/patch_hdmi.c
++++ b/sound/pci/hda/patch_hdmi.c
+@@ -394,7 +394,8 @@ static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
+ eld = &per_pin->sink_eld;
+
+ mutex_lock(&per_pin->lock);
+- if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data)) {
++ if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data) ||
++ eld->eld_size > ELD_MAX_SIZE) {
+ mutex_unlock(&per_pin->lock);
+ snd_BUG();
+ return -EINVAL;
+diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
+index 1dc0702ff818..06e80327567c 100644
+--- a/sound/pci/hda/patch_realtek.c
++++ b/sound/pci/hda/patch_realtek.c
+@@ -2197,6 +2197,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
+ SND_PCI_QUIRK(0x104d, 0x9047, "Sony Vaio TT", ALC889_FIXUP_VAIO_TT),
+ SND_PCI_QUIRK(0x104d, 0x905a, "Sony Vaio Z", ALC882_FIXUP_NO_PRIMARY_HP),
+ SND_PCI_QUIRK(0x104d, 0x9043, "Sony Vaio VGC-LN51JGB", ALC882_FIXUP_NO_PRIMARY_HP),
++ SND_PCI_QUIRK(0x104d, 0x9044, "Sony VAIO AiO", ALC882_FIXUP_NO_PRIMARY_HP),
+
+ /* All Apple entries are in codec SSIDs */
+ SND_PCI_QUIRK(0x106b, 0x00a0, "MacBookPro 3,1", ALC889_FIXUP_MBP_VREF),
+diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
+index 8457ebb7439e..81e2efd07cfd 100644
+--- a/sound/soc/soc-pcm.c
++++ b/sound/soc/soc-pcm.c
+@@ -1275,7 +1275,8 @@ static int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream)
+ (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) &&
+ (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) &&
+ (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) &&
+- (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP))
++ (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) &&
++ (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND))
+ continue;
+
+ dev_dbg(be->dev, "ASoC: hw_free BE %s\n",
+diff --git a/sound/usb/midi.c b/sound/usb/midi.c
+index 9123fc518f07..424c1e874bd3 100644
+--- a/sound/usb/midi.c
++++ b/sound/usb/midi.c
+@@ -2365,7 +2365,6 @@ int snd_usbmidi_create(struct snd_card *card,
+ else
+ err = snd_usbmidi_create_endpoints(umidi, endpoints);
+ if (err < 0) {
+- snd_usbmidi_free(umidi);
+ return err;
+ }
+
+diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
+index 655573a2575d..81d7e6a9725e 100644
+--- a/sound/usb/quirks.c
++++ b/sound/usb/quirks.c
+@@ -1114,8 +1114,12 @@ void snd_usb_set_interface_quirk(struct usb_device *dev)
+ * "Playback Design" products need a 50ms delay after setting the
+ * USB interface.
+ */
+- if (le16_to_cpu(dev->descriptor.idVendor) == 0x23ba)
++ switch (le16_to_cpu(dev->descriptor.idVendor)) {
++ case 0x23ba: /* Playback Design */
++ case 0x0644: /* TEAC Corp. */
+ mdelay(50);
++ break;
++ }
+ }
+
+ void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
+@@ -1130,6 +1134,14 @@ void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
+ (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
+ mdelay(20);
+
++ /*
++ * "TEAC Corp." products need a 20ms delay after each
++ * class compliant request
++ */
++ if ((le16_to_cpu(dev->descriptor.idVendor) == 0x0644) &&
++ (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
++ mdelay(20);
++
+ /* Marantz/Denon devices with USB DAC functionality need a delay
+ * after each class compliant request
+ */
+diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
+index d1c2a6a4cd32..8f39b9074f50 100644
+--- a/tools/lib/traceevent/event-parse.c
++++ b/tools/lib/traceevent/event-parse.c
+@@ -4190,13 +4190,12 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
+ sizeof(long) != 8) {
+ char *p;
+
+- ls = 2;
+ /* make %l into %ll */
+- p = strchr(format, 'l');
+- if (p)
++ if (ls == 1 && (p = strchr(format, 'l')))
+ memmove(p+1, p, strlen(p)+1);
+ else if (strcmp(format, "%p") == 0)
+ strcpy(format, "0x%llx");
++ ls = 2;
+ }
+ switch (ls) {
+ case -2:
+diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
+index daccd2c0a48f..f8c38e9f3562 100644
+--- a/tools/perf/Documentation/perf-trace.txt
++++ b/tools/perf/Documentation/perf-trace.txt
+@@ -53,7 +53,6 @@ OPTIONS
+ --verbose=::
+ Verbosity level.
+
+--i::
+ --no-inherit::
+ Child tasks do not inherit counters.
+
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