[Intel-gfx] [PATCH 3/5] drm/atomic: add a drm_atomic_clean_old_fb helper.

[Maarten Lankhorst]

Op 11-11-15 om 11:29 schreef Maarten Lankhorst:
> From: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
>
> This is useful for all the boilerplate code about cleaning old_fb.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>