It should return 1 if an error occurs when reading iso td.
This will avoid an infinite loop issue in ohci_service_ed_list.
Signed-off-by: NLi Qiang <liqiang6-s@360.cn>
Message-id: 5899ac3e.1033240a.944d5.9a2d@mx.google.com
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>