diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index e5759b5..61ffe71 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2334,7 +2334,7 @@
 	struct cgroup *pcg = cg->parent;
 	struct mem_cgroup *parent;
 	unsigned int nr_pages;
-	unsigned long flags;
+	unsigned long uninitialized_var(flags);
 	int ret;
 
 	/* Is ROOT ? */