2 files changed, 10 insertions, 11 deletions

diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index b0e9467922e1..d24e4339b46d 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -4188,7 +4188,7 @@ void debug_show_held_locks(struct task_struct *task)
 }
 EXPORT_SYMBOL_GPL(debug_show_held_locks);
 
-asmlinkage void lockdep_sys_exit(void)
+asmlinkage __visible void lockdep_sys_exit(void)
 {
         struct task_struct *curr = current;
 
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