diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 111607d91489..124b4b7b793f 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -5009,6 +5009,9 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
 	if (unlikely(!debug_locks))
 		return 0;
 
+	if (unlikely(!lock))
+		return 0;
+
 	if (!prove_locking || lock->key == &__lockdep_no_validate__)
 		check = 0;