drm: Document that drm_dev_alloc doesn't need a parent
authorDaniel Vetter <daniel.vetter@ffwll.ch>
Mon, 24 Nov 2014 19:01:58 +0000 (20:01 +0100)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 25 Nov 2014 12:12:42 +0000 (13:12 +0100)
Possible for purely virtual debug devices.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/drm_drv.c

Simple merge