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authorChris Wilson <chris@chris-wilson.co.uk>2013-01-07 10:11:40 +0000
committerDaniel Vetter <daniel.vetter@ffwll.ch>2013-01-07 17:40:19 +0100
commit3490ea5de6ac4af309c3df8a26a5cca61306334c (patch)
tree6adbd7881412b084fb3ba05080231122fb63e4f5 /include/drm/drm_mm.h
parent48e858340dae43189a4e55647f6eac736766f828 (diff)
downloadlinux-3490ea5de6ac4af309c3df8a26a5cca61306334c.tar.bz2
drm/i915: Treat crtc->mode.clock == 0 as disabled
Prevent a divide-by-zero by consistently treating an 'active' CRTC without a mode set as actually disabled. This looks to have been first introduced with commit 24929352481f085c5f85d4d4cbc919ddf106d381 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Mon Jul 2 20:28:59 2012 +0200 drm/i915: read out the modeset hw state at load and resume time but then combined with commit b0a2658acb5bf9ca86b4aab011b7106de3af0add Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Tue Dec 18 09:37:54 2012 +0100 drm/i915: don't disable disconnected outputs it finally started oopsing. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reported-and-tested-by: Alexey Zaytsev <alexey.zaytsev@gmail.com> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'include/drm/drm_mm.h')
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