drm/amdgpu: refine error handling in amdgpu_ttm_tt_pin_userptr
[ Upstream commit 46186667 ] Free sg table when dma_map_sgtable() failed to avoid memory leak. Signed-off-by:Lang Yu <lang.yu@amd.com> Reviewed-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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