lockdep: Fix a race between /proc/lock_stat and module unload

[cascardo/linux.git] / kernel / locking / lockdep.c

diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index a0831e1..aaeae88 100644 (file)
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -3900,7 +3900,8 @@ static void zap_class(struct lock_class *class)
        list_del_rcu(&class->hash_entry);
        list_del_rcu(&class->lock_entry);
 
-       class->key = NULL;
+       RCU_INIT_POINTER(class->key, NULL);
+       RCU_INIT_POINTER(class->name, NULL);
 }
 
 static inline int within(const void *addr, void *start, unsigned long size)