Originally it was impossible to be dropping the last refcount in this
function since there was always one around still from the idr. But in
commit 83f45fc360c8e16a330474860ebda872d1384c8c
Author: Daniel Vetter
Date: Wed Aug 6 09:10:18 2014 +0200
drm: Don't grab an fb reference for the idr
On Fri, Feb 27, 2015 at 01:03:37PM +0100, Daniel Vetter wrote:
> Originally it was impossible to be dropping the last refcount in this
> function since there was always one around still from the idr. But in
>
> commit 83f45fc360c8e16a330474860ebda872d1384c8c
> Author: Daniel Vetter
> Date: Wed
