drm/irq: Document return values more consistently
authorThierry Reding <treding@nvidia.com>
Wed, 12 Aug 2015 15:00:33 +0000 (17:00 +0200)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Wed, 12 Aug 2015 15:40:31 +0000 (17:40 +0200)
commitc30e11fc66fe21882c46e176ed695728ebd4293a
treef066f04c125d8fae225af74fa65868a104a16ada
parentcc1ef118fc099295ae6aabbacc8af94d8d8885eb
drm/irq: Document return values more consistently

Some of the functions are documented inconsistently. Add Returns:
sections where missing and use consistent style to describe the return
value.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/drm_irq.c