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vdpa/mlx5: Set err = -ENOMEM in case dma_map_sg_attrs fails
[ Upstream commit be286f8 ] Set err = -ENOMEM if dma_map_sg_attrs() fails so the function reutrns error. Fixes: 94abbcc ("vdpa/mlx5: Add shared memory registration code") Signed-off-by: Eli Cohen <elic@nvidia.com> Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20210411083646.910546-1-elic@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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