6.5-stable review patch. If anyone has any objections, please let me know.
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From: Christian König christian.koenig@amd.com
commit ff89f064dca38e2203790bf876cc7756b8ab2961 upstream.
bo->tbo.resource can easily be NULL here.
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2902 Signed-off-by: Christian König christian.koenig@amd.com Reviewed-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com CC: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h @@ -250,7 +250,7 @@ static inline bool amdgpu_bo_in_cpu_visi struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev); struct amdgpu_res_cursor cursor;
- if (bo->tbo.resource->mem_type != TTM_PL_VRAM) + if (!bo->tbo.resource || bo->tbo.resource->mem_type != TTM_PL_VRAM) return false;
amdgpu_res_first(bo->tbo.resource, 0, amdgpu_bo_size(bo), &cursor);