From 8239f57ac3e9bf9ad0cf4d396ebfa721e91ac611 Mon Sep 17 00:00:00 2001 From: Junwei Zhang Date: Mon, 23 Apr 2018 17:21:21 +0800 Subject: [PATCH] drm/amdgpu: bo could be null when access in vm bo update Signed-off-by: Junwei Zhang Reviewed-by: David Zhou Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 6a372ca11ee3..1c00f1a56e8b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -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);