error in deleting vm that is created with port

[Shinji YANAGIDA]

Error is occurred in deleting vm that is create with port.
  $ nova boot --flavor 1 --image cirros --security-group default --nic port-id=$PORT vm1
  $ nova delete vm1

08:24:33.952 ERROR oslo_messaging.rpc.dispatcher [req-518670ba-6f41-4ee9-90a5-b032bd065cbc neutron 7e84dd1a8b7e465e96a94e9df0702d9f] Exception during mes
ng: coercing to Unicode: need string or buffer, NoneType found
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher Traceback (most recent call last):
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 138, in _dispatch

08:24:33.952 TRACE oslo_messaging.rpc.dispatcher incoming.message))
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 183, in _dispatch
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher return self._do_dispatch(endpoint, method, ctxt, args)
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 127, in _do_dispa

08:24:33.952 TRACE oslo_messaging.rpc.dispatcher result = func(ctxt, **new_args)
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher File "/opt/stack/networking-nec/networking_nec/nwa/l2/rpc/nwa_proxy_callback.py", line 44, in delete_g

08:24:33.952 TRACE oslo_messaging.rpc.dispatcher return self.agent.delete_general_dev(context, **kwargs)
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher File "/usr/local/lib/python2.7/dist-packages/oslo_log/helpers.py", line 46, in wrapper
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher return method(*args, **kwargs)
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher File "/opt/stack/networking-nec/networking_nec/nwa/agent/proxy_tenant.py", line 30, in wrapper
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher return method(obj, context, **kwargs)
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher File "/opt/stack/networking-nec/networking_nec/nwa/agent/proxy_l2.py", line 433, in delete_general_dev
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher gd_count = check_segment_gd(network_id, resource_group_name, nwa_data)
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher File "/opt/stack/networking-nec/networking_nec/nwa/agent/proxy_l2.py", line 75, in check_segment_gd
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher nwa_const.NWA_DEVICE_GDV)
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher File "/opt/stack/networking-nec/networking_nec/nwa/agent/proxy_l2.py", line 61, in check_segment
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher dev_pat = re.compile(r'DEV_.*_' + network_id + '_' + res_name)
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher TypeError: coercing to Unicode: need string or buffer, NoneType found
08:24:33.952 TRACE oslo_messaging.rpc.dispatcher

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/302523
Committed: https://git.openstack.org/cgit/openstack/networking-nec/commit/?id=06a26a4c68dea4529932647ea66d0b5cdaa43ca1
Submitter: Jenkins
Branch: master

commit 06a26a4c68dea4529932647ea66d0b5cdaa43ca1
Author: Shinji YANAGIDA <email address hidden>
Date: Thu Apr 7 08:47:18 2016 +0900

    Fixed bug of deleting vm that is created with port

    If resource group name is empty when the port is deleted,
    get it from nwa_data.
    The resource group name is corresponding with MAC address of the port.

    Change-Id: I1fecef6dae0edf4484bc5d160b17d1e7a430b3bf
    Closes-Bug: #1567139