diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index bd6122c..97ab04c 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2444,7 +2444,7 @@
 	return 0;
 }
 
-static void cgroup_init_subsys(struct cgroup_subsys *ss)
+static void __init cgroup_init_subsys(struct cgroup_subsys *ss)
 {
 	struct cgroup_subsys_state *css;
 	struct list_head *l;