Re: [PATCH 2/5] drm/amdgpu: Add put fence in amdgpu_fence_driver_clear_job_fences

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Am 21.06.22 um 00:02 schrieb Andrey Grodzovsky:
This function should drop the fence refcount when it extracts the
fence from the fence array, just as it's done in amdgpu_fence_process.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@xxxxxxx>

Reviewed-by: Christian König <christian.koenig@xxxxxxx>

---
  drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 4 +++-
  1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
index 957437a5558c..a9ae3beaa1d3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
@@ -595,8 +595,10 @@ void amdgpu_fence_driver_clear_job_fences(struct amdgpu_ring *ring)
  	for (i = 0; i <= ring->fence_drv.num_fences_mask; i++) {
  		ptr = &ring->fence_drv.fences[i];
  		old = rcu_dereference_protected(*ptr, 1);
-		if (old && old->ops == &amdgpu_job_fence_ops)
+		if (old && old->ops == &amdgpu_job_fence_ops) {
  			RCU_INIT_POINTER(*ptr, NULL);
+			dma_fence_put(old);
+		}
  	}
  }




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