drm/i915: avoid premature timeouts in __wait_seqno()
At the moment wait_event_timeout/wait_event_interruptible_timeout may time out 1 jiffy too early, as the calculated expiry time is 1 less than needed. Besides timing out too early this also means that the calculation of the remaining time will be incorrect and we will pass a non-zero remaining time to user space in case of a time out. This is one reason for the following bugzilla report: Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64270 Signed-off-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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@ -1003,7 +1003,7 @@ static int __wait_seqno(struct intel_ring_buffer *ring, u32 seqno,
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wait_forever = false;
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}
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timeout_jiffies = timespec_to_jiffies(&wait_time);
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timeout_jiffies = timespec_to_jiffies_timeout(&wait_time);
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if (WARN_ON(!ring->irq_get(ring)))
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return -ENODEV;
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