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-rw-r--r--fs/fscache/object.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/fscache/object.c b/fs/fscache/object.c
index 0d65c0c92b46..1a1afa82f798 100644
--- a/fs/fscache/object.c
+++ b/fs/fscache/object.c
@@ -158,7 +158,8 @@ static void fscache_object_state_machine(struct fscache_object *object)
spin_lock(&object->lock);
object->state = FSCACHE_OBJECT_DYING;
- if (test_and_clear_bit(FSCACHE_COOKIE_CREATING,
+ if (object->cookie &&
+ test_and_clear_bit(FSCACHE_COOKIE_CREATING,
&object->cookie->flags))
wake_up_bit(&object->cookie->flags,
FSCACHE_COOKIE_CREATING);
@@ -594,7 +595,8 @@ static void fscache_object_available(struct fscache_object *object)
spin_lock(&object->lock);
- if (test_and_clear_bit(FSCACHE_COOKIE_CREATING, &object->cookie->flags))
+ if (object->cookie &&
+ test_and_clear_bit(FSCACHE_COOKIE_CREATING, &object->cookie->flags))
wake_up_bit(&object->cookie->flags, FSCACHE_COOKIE_CREATING);
fscache_done_parent_op(object);
@@ -631,6 +633,9 @@ static void fscache_drop_object(struct fscache_object *object)
_enter("{OBJ%x,%d}", object->debug_id, object->n_children);
+ ASSERTCMP(object->cookie, ==, NULL);
+ ASSERT(hlist_unhashed(&object->cookie_link));
+
spin_lock(&cache->object_list_lock);
list_del_init(&object->cache_link);
spin_unlock(&cache->object_list_lock);