tree 3d8ff64818b66283105f6367bf06a216b42458f8
parent 4f15bdce673e56b0fa863d604fb9c5a03581a96c
author zhong jiang <zhongjiang@huawei.com> 1537410553 +0800
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1574671974 +0100

misc: genwqe: should return proper error value.

[ Upstream commit 02241995b004faa7d9ff628e97f24056190853f8 ]

The function should return -EFAULT when copy_from_user fails. Even
though the caller does not distinguish them. but we should keep backward
compatibility.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>