Comment 1 for bug 1400804

Additional info: if you set the iscsi_helper to lioadm in this case, any driver that used to inherit from the base iSCSIDriver class for initialize_connection will fail and stack trace.

The reason is that the iscsi_helper is set in global CONF so if set to lioadm (even if not used) will always eval to true in that method and attempt the target_helper.initialize_connection call; but most drivers don't need this and won't have it so we'll fail for the error described in the pylint output above.