From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Li Zefan , Tejun Heo Subject: [ 45/45] cpuset: fix the return value of cpuset_write_u64() Date: Sun, 18 Aug 2013 13:36:34 -0700 Message-Id: <20130818203624.119951332@linuxfoundation.org> In-Reply-To: <20130818203620.996166594@linuxfoundation.org> References: <20130818203620.996166594@linuxfoundation.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Li Zefan commit a903f0865a190f8778c73df1a810ea6e25e5d7cf upstream. Writing to this file always returns -ENODEV: # echo 1 > cpuset.memory_pressure_enabled -bash: echo: write error: No such device Signed-off-by: Li Zefan Signed-off-by: Tejun Heo Signed-off-by: Greg Kroah-Hartman --- kernel/cpuset.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -1502,11 +1502,13 @@ static int cpuset_write_u64(struct cgrou { struct cpuset *cs = cgroup_cs(cgrp); cpuset_filetype_t type = cft->private; - int retval = -ENODEV; + int retval = 0; mutex_lock(&cpuset_mutex); - if (!is_cpuset_online(cs)) + if (!is_cpuset_online(cs)) { + retval = -ENODEV; goto out_unlock; + } switch (type) { case FILE_CPU_EXCLUSIVE: