diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 64f726599ff06c6319b82c05dc5a93ef17f5fe09..6b73d8657d64ae45bfd0085e6d4111fa417f3337 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -6352,8 +6352,6 @@ mem_cgroup_css_online(struct cgroup *cont)
 		 * call __mem_cgroup_free, so return directly
 		 */
 		mem_cgroup_put(memcg);
-		if (parent->use_hierarchy)
-			mem_cgroup_put(parent);
 	}
 	return error;
 }