From: Christian K�nig christian.koenig@amd.com
commit ca0b954a4315ca2228001c439ae1062561c81989 upstream
It's perfectly possible that the BO is about to be destroyed and doesn't have a backing store associated with it.
Signed-off-by: Christian K�nig christian.koenig@amd.com Reviewed-by: Alex Deucher alexander.deucher@amd.com Acked-by: Guchun Chen guchun.chen@amd.com Tested-by: Mikhail Gavrilov mikhail.v.gavrilov@gmail.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org # 6.3.x Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -1266,8 +1266,12 @@ void amdgpu_bo_move_notify(struct ttm_bu void amdgpu_bo_get_memory(struct amdgpu_bo *bo, struct amdgpu_mem_stats *stats) { - unsigned int domain; uint64_t size = amdgpu_bo_size(bo); + unsigned int domain; + + /* Abort if the BO doesn't currently have a backing store */ + if (!bo->tbo.resource) + return;
domain = amdgpu_mem_type_to_domain(bo->tbo.resource->mem_type); switch (domain) {