diff options
| -rw-r--r-- | kernel/locking/lockdep.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index 546e92827de4..050dbe9eec3c 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -5101,6 +5101,9 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass, lockevent_inc(lockdep_nocheck); } + if (DEBUG_LOCKS_WARN_ON(subclass >= MAX_LOCKDEP_SUBCLASSES)) + return 0; + if (subclass < NR_LOCKDEP_CACHING_CLASSES) class = lock->class_cache[subclass]; /* |