vmwgfx: return an -EFAULT if copy_to_user() fails
authorDan Carpenter <dan.carpenter@oracle.com>
Mon, 12 Nov 2012 11:07:24 +0000 (11:07 +0000)
committerDave Airlie <airlied@redhat.com>
Thu, 15 Nov 2012 23:53:01 +0000 (09:53 +1000)
commit888155bbf63a5f955d7a45932ff05e848f715bf0
tree75646d6dd53b85ac6f37b46c6195e972d7113997
parent77b67063bb6bce6d475e910d3b886a606d0d91f7
vmwgfx: return an -EFAULT if copy_to_user() fails

copy_to_user() returns the number of bytes remaining to be copied, but
we want to return a negative error code here.  I fixed a couple of these
last year, but I missed this one.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c