diff options
| -rw-r--r-- | kernel/lockdep.c | 1 | ||||
| -rw-r--r-- | kernel/lockdep_proc.c | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/kernel/lockdep.c b/kernel/lockdep.c index 410c3365ad8..ab933fecd2a 100644 --- a/kernel/lockdep.c +++ b/kernel/lockdep.c @@ -3176,6 +3176,7 @@ static void zap_class(struct lock_class *class) list_del_rcu(&class->hash_entry); list_del_rcu(&class->lock_entry); + class->key = NULL; } static inline int within(const void *addr, void *start, unsigned long size) diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c index 6252ff799d1..fa19aee604c 100644 --- a/kernel/lockdep_proc.c +++ b/kernel/lockdep_proc.c @@ -201,6 +201,9 @@ static int lc_show(struct seq_file *m, void *v) for (i = 0; i < chain->depth; i++) { class = lock_chain_get_class(chain, i); + if (!class->key) + continue; + seq_printf(m, "[%p] ", class->key); print_name(m, class); seq_puts(m, "\n"); |