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authorJiri Kosina <jkosina@suse.cz>2014-06-04 13:09:01 +0200
committerJiri Kosina <jkosina@suse.cz>2014-06-04 13:09:01 +0200
commitaf5666e0f76023d9c296016024297903a4c83108 (patch)
tree9397e7a41dd3eb0c0e14a6407a8e8f12abed4fc5 /kernel/locking/mutex-debug.c
parent1b15d2e5b8077670b1e6a33250a0d9577efff4a5 (diff)
parent368c96640d10a145da5f258f2d2833668d4f3629 (diff)
Merge branches 'for-3.15/upstream-fixes' and 'for-3.16/upstream' into for-linus
Conflicts: drivers/hid/hid-sensor-hub.c
Diffstat (limited to 'kernel/locking/mutex-debug.c')
-rw-r--r--kernel/locking/mutex-debug.c19
1 files changed, 9 insertions, 10 deletions
diff --git a/kernel/locking/mutex-debug.c b/kernel/locking/mutex-debug.c
index e1191c996c59..5cf6731b98e9 100644
--- a/kernel/locking/mutex-debug.c
+++ b/kernel/locking/mutex-debug.c
@@ -71,18 +71,17 @@ void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
void debug_mutex_unlock(struct mutex *lock)
{
- if (unlikely(!debug_locks))
- return;
+ if (likely(debug_locks)) {
+ DEBUG_LOCKS_WARN_ON(lock->magic != lock);
- DEBUG_LOCKS_WARN_ON(lock->magic != lock);
+ if (!lock->owner)
+ DEBUG_LOCKS_WARN_ON(!lock->owner);
+ else
+ DEBUG_LOCKS_WARN_ON(lock->owner != current);
- if (!lock->owner)
- DEBUG_LOCKS_WARN_ON(!lock->owner);
- else
- DEBUG_LOCKS_WARN_ON(lock->owner != current);
-
- DEBUG_LOCKS_WARN_ON(!lock->wait_list.prev && !lock->wait_list.next);
- mutex_clear_owner(lock);
+ DEBUG_LOCKS_WARN_ON(!lock->wait_list.prev && !lock->wait_list.next);
+ mutex_clear_owner(lock);
+ }
/*
* __mutex_slowpath_needs_to_unlock() is explicitly 0 for debug