linux-kernel - [PATCH 2/2] cpuset: return the return value of cgroup

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Message-ID: <50F4F314.4040103@huawei.com>
Date:	Tue, 15 Jan 2013 14:11:32 +0800
From:	Li Zefan <lizefan@...wei.com>
To:	Tejun Heo <tj@...nel.org>
CC:	Sasha Levin <sasha.levin@...cle.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Cgroups <cgroups@...r.kernel.org>
Subject: [PATCH 2/2] cpuset: return the return value of cgroup_path() to userspace

-EINVAL is improper, as we don't accept user inputs.

Signed-off-by: Li Zefan <lizefan@...wei.com>
---
 kernel/cpuset.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 1a675e4..16be7c9 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -2677,7 +2677,6 @@ static int proc_cpuset_show(struct seq_file *m, void *unused_v)
 	if (!tsk)
 		goto out_free;
 
-	retval = -EINVAL;
 	rcu_read_lock();
 	css = task_subsys_state(tsk, cpuset_subsys_id);
 	retval = cgroup_path(css->cgroup, buf, PAGE_SIZE);
-- 
1.8.0.2

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