drm/amdgpu: fix amdgpu_ring_write_multiple

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@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
index 04cbc3a..322d252 100644 (file)
--- 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];