[PATCH 2/5] drm/i915: use wait_event_timeout when waiting for flip completions

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We're shutting the crtc off and don't want to hang forever.

Signed-off-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/intel_display.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index bc25481..8da1c96 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2912,8 +2912,9 @@ static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
 
 	WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue));
 
-	wait_event(dev_priv->pending_flip_queue,
-		   !intel_crtc_has_pending_flip(crtc));
+	wait_event_timeout(dev_priv->pending_flip_queue,
+			   !intel_crtc_has_pending_flip(crtc),
+			   msecs_to_jiffies(50));
 
 	mutex_lock(&dev->struct_mutex);
 	intel_finish_fb(crtc->fb);
-- 
1.8.3.1

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