Ben Skeggs 1b0f84380b drm/nouveau/tmr: handle races with hw when updating the next alarm time
If the time to the next alarm is short enough, we could race with HW and
end up with an ~4 second delay until it triggers.

Fix this by checking again after we update HW.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
2017-05-12 08:32:57 +10:00
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