tree 0171abae8bd05710c83444b8a236fc6ffbcac71c
parent 9e9e3cbc62da43c66e894d5a61fa08b427e25202
author KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> 1233267910 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1233281083 -0800

cgroups: use hierarchy mutex in creation failure path

Now, cgrp->sibling is handled under hierarchy mutex.
error route should do so, too.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Acked-by Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>