[PATCH 24/30] staging: sync: Use proper barriers when waiting indefinitely

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From: Erik Gilling <konkers@xxxxxxxxxxx>

The previous fix only addressed waiting with a timeout.

Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxx>
Cc: Erik Gilling <konkers@xxxxxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: Rob Clark <robclark@xxxxxxxxx>
Cc: Sumit Semwal <sumit.semwal@xxxxxxxxxx>
Cc: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: Android Kernel Team <kernel-team@xxxxxxxxxxx>
Signed-off-by: Erik Gilling <konkers@xxxxxxxxxxx>
Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx>
---
 drivers/staging/android/sync.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c
index 889ca6e..811cf65 100644
--- a/drivers/staging/android/sync.c
+++ b/drivers/staging/android/sync.c
@@ -588,7 +588,8 @@ int sync_fence_wait(struct sync_fence *fence, long timeout)
 						       sync_fence_check(fence),
 						       timeout);
 	} else if (timeout < 0) {
-		err = wait_event_interruptible(fence->wq, fence->status != 0);
+		err = wait_event_interruptible(fence->wq,
+					       sync_fence_check(fence));
 	}
 
 	if (err < 0)
-- 
1.7.10.4

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