memcg: css_alloc should return an ERR_PTR value on error

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

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index d4a33e1..ac8664d 100644 (file)
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4203,7 +4203,7 @@ mem_cgroup_css_alloc(struct cgroup_subsys_state *parent_css)
        return &memcg->css;
 fail:
        mem_cgroup_free(memcg);
-       return NULL;
+       return ERR_PTR(-ENOMEM);
 }
 
 static int