From: Christian König <deathsimple@vodafone.de>
Date: Wed, 2 May 2012 13:11:15 +0000 (+0200)
Subject: drm/radeon: return -ENOENT in fence_wait_next v2
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2f6bfe116e691eacef1aa41e4986200b20d67a0a;p=linux-beck.git

drm/radeon: return -ENOENT in fence_wait_next v2

We should signal the caller that we haven't waited at all.

v2: only change fence_wait_next not fence_wait_last.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c
index 1a9765aae710..2fbbc34a58c0 100644
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/drivers/gpu/drm/radeon/radeon_fence.c
@@ -286,7 +286,7 @@ int radeon_fence_wait_next(struct radeon_device *rdev, int ring)
 	}
 	if (list_empty(&rdev->fence_drv[ring].emitted)) {
 		write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
-		return 0;
+		return -ENOENT;
 	}
 	fence = list_entry(rdev->fence_drv[ring].emitted.next,
 			   struct radeon_fence, list);