Commit 4e917713 authored Dec 03, 2018 by Christian König Committed by Alex Deucher Dec 14, 2018

drm/amdgpu: fix NULL fence handling in amdgpu_cs_fence_to_handle_ioctl



When the fence is already signaled it is perfectly normal to get a NULL
fence here. But since we can't export that we need to use a stub fence.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent e27a73d1

drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1428,6 +1428,9 @@ int amdgpu_cs_fence_to_handle_ioctl(struct drm_device dev, void data,
		if (IS_ERR(fence))
		return PTR_ERR(fence);

		if (!fence)
		fence = dma_fence_get_stub();

		switch (info->in.what) {
		case AMDGPU_FENCE_TO_HANDLE_GET_SYNCOBJ:
		r = drm_syncobj_create(&syncobj, 0, fence);

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