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drm/radeon: fix radeon_fence_wait_empty_locked

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Don't block forever if there is nothing to wait for.

Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Rafa? Mi?ecki <zajec5@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Christian König 2013-11-05 14:09:54 +01:00 committed by Dave Airlie
parent d9bbf1895f
commit 721529b578
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/radeon/radeon_fence.c
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@ -510,6 +510,9 @@ int radeon_fence_wait_empty_locked(struct radeon_device *rdev, int ring)
int r;
seq[ring] = rdev->fence_drv[ring].sync_seq[ring];
if (!seq[ring])
return 0;
r = radeon_fence_wait_seq(rdev, seq, false, false);
if (r) {
if (r == -EDEADLK)