From: Dan Carpenter <error27@gmail.com>
Date: Fri, 4 Jun 2010 10:23:21 +0000 (+0200)
Subject: drm/drm_crtc: return -EFAULT on copy_to_user errors
X-Git-Tag: v2.6.35-rc3~23^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e902a358c753b93245083201c02312a580cf13d4;p=pandora-kernel.git

drm/drm_crtc: return -EFAULT on copy_to_user errors

copy_from_user() returns the number of bytes left to be copied but we
want to return a negative error code here.  This is in the ioctl handler
so the error code get returned to userspace.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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