https://github.com/torvalds/linux
Revision 11f6145791775ce41b8993fd29e19eb53ef0ff14 authored by Imre Deak on 28 June 2016, 10:37:31 UTC, committed by Jani Nikula on 29 June 2016, 08:17:50 UTC
Since wait_for_atomic doesn't re-check the wait-for condition after
expiry of the timeout it can fail when called from non-atomic context
even if the condition is set correctly before the expiry. Fix this by
using the non-atomic wait_for instead.

Fixes: 0351b93992aa ("drm/i915: Do not lie about atomic timeout granularity")
CC: Chris Wilson <chris@chris-wilson.co.uk>
CC: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
CC: drm-intel-fixes@lists.freedesktop.org
Link: http://patchwork.freedesktop.org/patch/msgid/1467110253-16046-3-git-send-email-imre.deak@intel.com
(cherry picked from commit cf3598c23cd09d5f063fa8c12fe9ddd5a352d3d5)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
1 parent ea12e2a
History
Tip revision: 11f6145791775ce41b8993fd29e19eb53ef0ff14 authored by Imre Deak on 28 June 2016, 10:37:31 UTC
drm/i915/lpt: Avoid early timeout during FDI PHY reset
Tip revision: 11f6145
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