---
  mm/memcontrol.c | 3 +--
  1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 25ac5f4..28252c9 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c

@@ -5883,8 +5883,7 @@ static int mem_cgroup_oom_control_write(struct cgroup *cgrp,
  
  	mutex_lock(&memcg_create_mutex);
  	/* oom-kill-disable is a flag for subhierarchy. */
-	if ((parent->use_hierarchy) ||
-	    (memcg->use_hierarchy && !list_empty(&cgrp->children))) {
+	if ((parent->use_hierarchy) || memcg_has_children(memcg)) {
  		cgroup_unlock();
  		return -EINVAL;
  	}