i915_gem: return -EFAULT if copy_to_user fails
authorDan Carpenter <error27@gmail.com>
Wed, 23 Jun 2010 17:03:01 +0000 (19:03 +0200)
committerGreg Kroah-Hartman <gregkh@suse.de>
Mon, 20 Sep 2010 20:18:14 +0000 (13:18 -0700)
commit079908f18d73154f76b8abb656d63bfeda0e201f
treece255517fd4b4b32bb93e150ea79d600063bc967
parent9cd74cb5174c58dd7165f8cd10897bd775a9a777
i915_gem: return -EFAULT if copy_to_user fails

commit c877cdce93a44eea96f6cf7fc04be7d0372db2be upstream.

copy_to_user() returns the number of bytes remaining to be copied and
I'm pretty sure we want to return a negative error code here.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/gpu/drm/i915/i915_gem.c