[PATCH 02/12] drm/amdgpu: fix amdgpu_ring_write_multiple

[Christian König]

From: Christian König <christian.koenig at amd.com>

Overwriting still used ring content has a low probability to cause
problems, not writing at all has 100% probability to cause problems.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
index 04cbc3a..322d2529 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -227,10 +227,8 @@ static inline void amdgpu_ring_write_multiple(struct amdgpu_ring *ring,
 	unsigned occupied, chunk1, chunk2;
 	void *dst;
 
-	if (unlikely(ring->count_dw < count_dw)) {
+	if (unlikely(ring->count_dw < count_dw))
 		DRM_ERROR("amdgpu: writing more dwords to the ring than expected!\n");
-		return;
-	}
 
 	occupied = ring->wptr & ring->buf_mask;
 	dst = (void *)&ring->ring[occupied];
-- 
2.7.4