https://github.com/torvalds/linux
Revision e411072d5740a49cdc9d0713798c30440757e451 authored by Matthew Auld on 28 November 2016, 10:36:48 UTC, committed by Jani Nikula on 30 November 2016, 10:09:26 UTC
We grab the struct_mutex in intel_crtc_page_flip, but if we are wedged
or a reset is in progress we bail early but never seem to actually
release the lock.
Fixes: 7f1847ebf48b ("drm/i915: Simplify checking of GPU reset_counter in display pageflips")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161128103648.9235-1-matthew.auld@intel.com
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: <stable@vger.kernel.org> # v4.7+
(cherry picked from commit ddbb271aea87fc6004d3c8bcdb0710e980c7ec85)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
1 parent 2420489
Tip revision: e411072d5740a49cdc9d0713798c30440757e451 authored by Matthew Auld on 28 November 2016, 10:36:48 UTC
drm/i915: drop the struct_mutex when wedged or trying to reset
drm/i915: drop the struct_mutex when wedged or trying to reset
Tip revision: e411072
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