diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index e7abfdd77c3b..e42f1400cea9 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1718,7 +1718,7 @@ static CLOSURE_CALLBACK(cache_set_flush)
 	if (!IS_ERR_OR_NULL(c->gc_thread))
 		kthread_stop(c->gc_thread);
 
-	if (!IS_ERR(c->root))
+	if (!IS_ERR_OR_NULL(c->root))
 		list_add(&c->root->list, &c->btree_cache);
 
 	/*