diff --git a/[refs] b/[refs]
index 37e93975f554..3a35b687435d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f00baae7ad6c5f1503528efa852f0be8e9513f0e
+refs/heads/master: e57d5cf2f894e3f2727f8cf74bed0bc81cae70c8
diff --git a/trunk/security/device_cgroup.c b/trunk/security/device_cgroup.c
index 994aeccea518..dd0dc574d78d 100644
--- a/trunk/security/device_cgroup.c
+++ b/trunk/security/device_cgroup.c
@@ -236,7 +236,6 @@ static void devcgroup_offline(struct cgroup *cgroup)
 static struct cgroup_subsys_state *devcgroup_css_alloc(struct cgroup *cgroup)
 {
 	struct dev_cgroup *dev_cgroup;
-	struct cgroup *parent_cgroup;
 
 	dev_cgroup = kzalloc(sizeof(*dev_cgroup), GFP_KERNEL);
 	if (!dev_cgroup)
@@ -244,7 +243,6 @@ static struct cgroup_subsys_state *devcgroup_css_alloc(struct cgroup *cgroup)
 	INIT_LIST_HEAD(&dev_cgroup->exceptions);
 	INIT_LIST_HEAD(&dev_cgroup->propagate_pending);
 	dev_cgroup->behavior = DEVCG_DEFAULT_NONE;
-	parent_cgroup = cgroup->parent;
 
 	return &dev_cgroup->css;
 }