Merge branch 'linus' into perf/core

Merge reason: merge the latest fixes, update to latest -rc.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

4 files changed, 11 insertions, 4 deletions

diff --git a/kernel/cred.c b/kernel/cred.c
index e1dbe9eef800..62af1816c235 100644
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -398,6 +398,8 @@ struct cred *prepare_usermodehelper_creds(void)
 
 error:
         put_cred(new);
+        return NULL;
+
 free_tgcred:
 #ifdef CONFIG_KEYS
         kfree(tgcred);
@@ -791,8 +793,6 @@ bool creds_are_invalid(const struct cred *cred)
 {
         if (cred->magic != CRED_MAGIC)
                 return true;
-        if (atomic_read(&cred->usage) < atomic_read(&cred->subscribers))
-                return true;
 #ifdef CONFIG_SECURITY_SELINUX
         if (selinux_is_enabled()) {
                 if ((unsigned long) cred->security < PAGE_SIZE)
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 4d2289626a84..a8c96212bc1b 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -420,7 +420,7 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
                          * User space encodes device types as two-byte values,
                          * so we need to recode them
                          */
-                        swdev = old_decode_dev(swap_area.dev);
+                        swdev = new_decode_dev(swap_area.dev);
                         if (swdev) {
                                 offset = swap_area.offset;
                                 data->swap = swap_type_of(swdev, offset, NULL);
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index 63fe25433980..03a7ea1579f6 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -69,6 +69,13 @@ EXPORT_SYMBOL_GPL(rcu_scheduler_active);
 
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 
+int debug_lockdep_rcu_enabled(void)
+{
+        return rcu_scheduler_active && debug_locks &&
+               current->lockdep_recursion == 0;
+}
+EXPORT_SYMBOL_GPL(debug_lockdep_rcu_enabled);
+
 /**
  * rcu_read_lock_bh_held - might we be in RCU-bh read-side critical section?
  *
diff --git a/kernel/sched.c b/kernel/sched.c
index 8cafe3ff558f..b0bbadc24955 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4860,7 +4860,7 @@ SYSCALL_DEFINE3(sched_getaffinity, pid_t, pid, unsigned int, len,
         int ret;
         cpumask_var_t mask;
 
-        if (len < nr_cpu_ids)
+        if ((len * BITS_PER_BYTE) < nr_cpu_ids)
                 return -EINVAL;
         if (len & (sizeof(unsigned long)-1))
                 return -EINVAL;