[PATCH] drm: qxl: add missing return check

[Gerd Hoffmann]

On Di, 2017-03-14 at 10:54 +0300, Dan Carpenter wrote:
> My static checker complains that "release" is uninitialized if
> qxl_alloc_release_reserved() fails, so let's add a check for that.

applied to drm-misc-next.

thanks,
  Gerd