From 2a73991b76cbd38c4a0c6704449ccc08c89c3ff3 Mon Sep 17 00:00:00 2001
From: Li Zefan <lizefan@huawei.com>
Date: Thu, 24 Jan 2013 14:31:11 +0800
Subject: [PATCH] sched: remove redundant NULL cgroup check in
 task_group_path()

A task_group won't be online (thus no one can see it) until
cpu_cgroup_css_online(), and at that time tg->css.cgroup has
been initialized, so this NULL check is redundant.

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