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-rw-r--r--kernel/mutex-debug.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/mutex-debug.c b/kernel/mutex-debug.c
index 18651641a7b..841539d72c5 100644
--- a/kernel/mutex-debug.c
+++ b/kernel/mutex-debug.c
@@ -77,6 +77,9 @@ void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
void debug_mutex_unlock(struct mutex *lock)
{
+ if (unlikely(!debug_locks))
+ return;
+
DEBUG_LOCKS_WARN_ON(lock->owner != current_thread_info());
DEBUG_LOCKS_WARN_ON(lock->magic != lock);
DEBUG_LOCKS_WARN_ON(!lock->wait_list.prev && !lock->wait_list.next);