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drm/amdgpu: check domain sanity in amdgpu_bo_pin_restricted()

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abort if the bo is pined to other domain already

Signed-off-by: Flora Cui <Flora.Cui@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Flora Cui
2016-08-18 12:55:13 +08:00
committed by Alex Deucher
parent c632d79943
commit 408778e8e9
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
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@@ -520,6 +520,11 @@ int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
return -EINVAL;
if (bo->pin_count) {
uint32_t mem_type = bo->tbo.mem.mem_type;
if (domain != amdgpu_mem_type_to_domain(mem_type))
return -EINVAL;
bo->pin_count++;
if (gpu_addr)
*gpu_addr = amdgpu_bo_gpu_offset(bo);