[patch] i915: return -EFAULT if copy_to_user fails

[Chris Wilson]

On Sat, 19 Jun 2010 15:12:51 +0200, Dan Carpenter <error27 at gmail.com> wrote:
> copy_to_user returns the number of bytes remaining to be copied, but we
> want to return a negative error code here.  These are returned to
> userspace.
> 
> Signed-off-by: Dan Carpenter <error27 at gmail.com>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>

-- 
Chris Wilson, Intel Open Source Technology Centre