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cgroup: fix missing unlock on error in cgroup_load_subsys() 

Add the missing unlock before return from function cgroup_load_subsys()
in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
This commit is contained in:
Wei Yongjun 2013-12-09 20:38:29 +08:00 committed by Tejun Heo
parent b85d20404c
commit 0be8669dd5
1 changed files with 1 additions and 0 deletions
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1
kernel/cgroup.c
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@ -4618,6 +4618,7 @@ int __init_or_module cgroup_load_subsys(struct cgroup_subsys *ss)
if (IS_ERR(css)) {
/* failure case - need to deassign the cgroup_subsys[] slot. */
cgroup_subsys[ss->subsys_id] = NULL;
mutex_unlock(&cgroup_root_mutex);
mutex_unlock(&cgroup_mutex);
return PTR_ERR(css);
}