From: Li Zefan <lizefan@huawei.com>
Date: Wed, 31 Jul 2013 08:16:28 +0000 (+0800)
Subject: cgroup: fix a leak when percpu_ref_init() fails
X-Git-Tag: v3.11-rc6~1^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=da0a12caffad2eeadea429f83818408e7b77379a;p=platform%2Fkernel%2Flinux-stable.git

cgroup: fix a leak when percpu_ref_init() fails

ss->css_free() is not called when perfcpu_ref_init() fails.

Signed-off-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index afb8d53..468e410 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -4344,8 +4344,10 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry,
 		}
 
 		err = percpu_ref_init(&css->refcnt, css_release);
-		if (err)
+		if (err) {
+			ss->css_free(cgrp);
 			goto err_free_all;
+		}
 
 		init_cgroup_css(css, ss, cgrp);