From: Tejun Heo <tj@kernel.org>
Date: Mon, 19 Nov 2012 16:13:38 +0000 (-0800)
Subject: cgroup: allow ->post_create() to fail
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~57^2~20
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b1929db42f8a649d9a9e397119f628c27fd4021f;p=pandora-kernel.git

cgroup: allow ->post_create() to fail

There could be cases where controllers want to do initialization
operations which may fail from ->post_create().  This patch makes
->post_create() return -errno to indicate failure and online_css()
relay such failures.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Cc: Glauber Costa <glommer@parallels.com>
---

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