mm: memcontrol: pull the NULL check from __mem_cgroup_same_or_subtree()

[cascardo/linux.git] / mm / memcontrol.c

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 367cc57..e5dcebd 100644 (file)
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1337,7 +1337,7 @@ bool __mem_cgroup_same_or_subtree(const struct mem_cgroup *root_memcg,
 {
        if (root_memcg == memcg)
                return true;
-       if (!root_memcg->use_hierarchy || !memcg)
+       if (!root_memcg->use_hierarchy)
                return false;
        return cgroup_is_descendant(memcg->css.cgroup, root_memcg->css.cgroup);
 }