diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 0356cb6c950475b9f636cb7100569897863b76d1..5f7b0e1d789cd89c12517e0cb1c4204f5aed4780 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -370,9 +370,6 @@ page_cgroup_zoneinfo(struct page_cgroup *pc)
 	int nid = page_cgroup_nid(pc);
 	int zid = page_cgroup_zid(pc);
 
-	if (!mem)
-		return NULL;
-
 	return mem_cgroup_zoneinfo(mem, nid, zid);
 }