From: Li Zefan <lizefan@huawei.com>
To: Tejun Heo <tj@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>, Cgroups <cgroups@vger.kernel.org>
Subject: [PATCH 1/7] cgroup: fix a leak when percpu_ref_init() fails
Date: Wed, 31 Jul 2013 16:16:28 +0800 [thread overview]
Message-ID: <51F8C7DC.8060306@huawei.com> (raw)
In-Reply-To: <51F8C7C5.9040608@huawei.com>
ss->css_free() is not called when perfcpu_ref_init() fails.
Signed-off-by: Li Zefan <lizefan@huawei.com>
---
kernel/cgroup.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index a64b7b8..e60eba2 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -4274,8 +4274,10 @@ 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);
}
--
1.8.0.2
next prev parent reply other threads:[~2013-07-31 8:16 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-31 8:16 [PATCH 0/7] some pending cgroup patches Li Zefan
2013-07-31 8:16 ` Li Zefan [this message]
2013-07-31 10:14 ` [PATCH 1/7] cgroup: fix a leak when percpu_ref_init() fails Tejun Heo
2013-07-31 8:16 ` [PATCH 2/7] cgroup: remove sparse tags from offline_css() Li Zefan
2013-07-31 10:42 ` Tejun Heo
2013-07-31 8:17 ` [PATCH 3/7] cgroup: restructure the failure path in cgroup_write_event_control() Li Zefan
2013-07-31 10:44 ` Tejun Heo
2013-08-01 1:51 ` [PATCH v2 " Li Zefan
2013-08-01 13:30 ` Tejun Heo
2013-07-31 8:17 ` [PATCH 4/7] cgroup: rename cgroup_pidlist->mutex Li Zefan
2013-07-31 11:35 ` Tejun Heo
2013-08-01 1:52 ` [PATCH v2 " Li Zefan
2013-08-01 13:30 ` Tejun Heo
2013-07-31 8:17 ` [PATCH 5/7] cgroup: remove struct cgroup_seqfile_state Li Zefan
2013-07-31 9:27 ` Li Zefan
2013-07-31 11:35 ` Tejun Heo
2013-08-01 1:11 ` Li Zefan
2013-07-31 8:18 ` [PATCH 6/7] cgroup: rename current_css_set_cg_links Li Zefan
2013-07-31 11:38 ` Tejun Heo
2013-08-01 1:11 ` Li Zefan
2013-07-31 8:18 ` [PATCH 7/7] cgroup: more naming cleanups Li Zefan
2013-07-31 11:39 ` Tejun Heo
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