Daniel Vetter 220dd2bc43 drm: Fixup racy refcounting in plane_force_disable ... Originally it was impossible to be dropping the last refcount in this function since there was always one around still from the idr. But in commit 83f45fc360 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Wed Aug 6 09:10:18 2014 +0200 drm: Don't grab an fb reference for the idr we've switched to weak references, broke that assumption but forgot to fix it up. Since we still force-disable planes it's only possible to hit this when racing multiple rmfb with fbdev restoring or similar evil things. As long as userspace is nice it's impossible to hit the BUG_ON. But the BUG_ON would most likely be hit from fbdev code, which usually invovles the console_lock besides all modeset locks. So very likely we'd never get the bug reports if this was hit in the wild, hence better be safe than sorry and backport. Spotted by Matt Roper while reviewing other patches. Cc: stable@vger.kernel.org Cc: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>		2015-03-10 09:59:33 +01:00
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drm	drm: Fixup racy refcounting in plane_force_disable	2015-03-10 09:59:33 +01:00
host1x	gpu: host1x: Provide a proper struct bus_type	2015-01-27 10:09:14 +01:00
ipu-v3	gpu: ipu-v3: do not divide by zero if the pixel clock is too large	2015-02-23 17:18:59 +01:00
vga	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-13 16:23:15 +02:00
Makefile	gpu: host1x: Provide a proper struct bus_type	2015-01-27 10:09:14 +01:00