[Intel-gfx] [PATCH] drm/i915: Defend against userspace creating a gem object with size==0

[Daniel Vetter]

Hi Keith,

This fixes a potential user-triggerable oops (when submitting an execbuf
with a zero-length object on a kernel with dmar support). Please merge for
-fixes, Cc: stable.

Yours, Daniel
-- 
Daniel Vetter
Mail: daniel at ffwll.ch
Mobile: +41 (0)79 365 57 48