From: Christian König ckoenig.leichtzumerken@gmail.com

[ Upstream commit fc74881c28d314b10efac016ef49df4ff40b8b97 ]

bo->tbo.resource can now be NULL.

Signed-off-by: Christian König christian.koenig@amd.com Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1811 Acked-by: Alex Deucher alexander.deucher@amd.com Link: https://patchwork.freedesktop.org/patch/msgid/20211210083927.1754-1-christia... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c index ae6ab93c868b8..7444484a12bf8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c @@ -384,7 +384,7 @@ amdgpu_dma_buf_move_notify(struct dma_buf_attachment *attach) struct amdgpu_vm_bo_base *bo_base; int r;

- if (bo->tbo.resource->mem_type == TTM_PL_SYSTEM) + if (!bo->tbo.resource || bo->tbo.resource->mem_type == TTM_PL_SYSTEM) return;

r = ttm_bo_validate(&bo->tbo, &placement, &ctx);