From: Rob Clark <robdclark@gmail.com>
Date: Wed, 6 Aug 2014 17:16:59 +0000 (-0400)
Subject: drm: idiot-proof vblank
X-Git-Tag: fixes-against-v3.18-rc2~73^2~79^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e6ae8687a87b1fe5c25e824c8ad300f5587eb622;p=pandora-kernel.git

drm: idiot-proof vblank

After spending slightly more time than I'd care to admit debugging the
various and presumably spectacular way things fail when you pass too low
a value to drm_vblank_init() (thanks console-lock for not letting me see
the carnage!), I decided it might be a good idea to add some sanity
checking.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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