[Intel-gfx] [PATCH:xf86-intel-video] Add NULL checking for drawable in sna_dri2_flip_event

[Chris Wilson]

On Fri, Feb 05, 2016 at 04:50:22PM +0800, Lim Siew Hoon wrote:
> The last flip complete signal may happen after the
> sna_dri2_destroy_window function has been called. This
> leads to calling frame_swap_complete with a null flip
> drawable. So check for that and handle accordingly.

Treating the symptom and not the cause.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre