drm/amdgpu: bo could be null when access in vm bo update (8239f57a) · Commits · 戴 / test

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

+2 −3

Original line number	Diff line number	Diff line
		@@ -1509,7 +1509,6 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev,
		struct drm_mm_node *nodes;
		struct dma_fence exclusive, *last_update;
		uint64_t flags;
		uint32_t mem_type;
		int r;

		if (clear \|\| !bo_va->base.bo) {
		@@ -1568,9 +1567,9 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev,
		* the evicted list so that it gets validated again on the
		* next command submission.
		*/
		mem_type = bo->tbo.mem.mem_type;
		if (bo && bo->tbo.resv == vm->root.base.bo->tbo.resv &&
		!(bo->preferred_domains & amdgpu_mem_type_to_domain(mem_type)))
		!(bo->preferred_domains &
		amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type)))
		list_add_tail(&bo_va->base.vm_status, &vm->evicted);
		spin_unlock(&vm->status_lock);