1 files changed, 6 insertions, 1 deletions

diff --git a/kernel/locking/mutex-debug.c b/kernel/locking/mutex-debug.c
index 7e3443fe1f48..faf6f5b53e77 100644
--- a/kernel/locking/mutex-debug.c
+++ b/kernel/locking/mutex-debug.c
@@ -75,7 +75,12 @@ void debug_mutex_unlock(struct mutex *lock)
                 return;
 
         DEBUG_LOCKS_WARN_ON(lock->magic != lock);
-        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);
 }