1 files changed, 1 insertions, 5 deletions

diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 6e9cbdde25bd..259a4af37e69 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -133,11 +133,7 @@ static inline struct cpuset *task_cs(struct task_struct *task)
 
 static inline struct cpuset *parent_cs(struct cpuset *cs)
 {
-        struct cgroup *pcgrp = cs->css.cgroup->parent;
-
-        if (pcgrp)
-                return cgroup_cs(pcgrp);
-        return NULL;
+        return css_cs(css_parent(&cs->css));
 }
 
 #ifdef CONFIG_NUMA