diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index e810e8cb17e18f346c2bcea5028ec8c7909d54ca..1e272f6a01e73e0359a874ef580a623c1af59b3d 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -3605,6 +3605,9 @@ static int __lock_downgrade(struct lockdep_map *lock, unsigned long ip) unsigned int depth; int i; + if (unlikely(!debug_locks)) + return 0; + depth = curr->lockdep_depth; /* * This function is about (re)setting the class of a held lock,