From 9a991600e379641b9c16310b87ca848b6da01c24 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 8 Nov 2013 13:07:37 +0300
Subject: [PATCH] drm/tegra: return -EFAULT if copy_from_user() fails

copy_from_user() returns the number of bytes remaining if it fails, but
we want to return -EFAULT here.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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