Description of problem:
When "exit" from targetcli, got these errors:
====
/tcm_fc/20:00...5:1e:8f:fa:db> exit
Global pref auto_save_on_exit=true
Existing file /etc/target/saveconfig.json backed up to saveconfig.json.backup
Traceback (most recent call last):
  File "/usr/bin/targetcli", line 93, in <module>
    main()
  File "/usr/bin/targetcli", line 89, in main
    root_node.ui_command_saveconfig()
  File "/usr/lib/python2.6/site-packages/targetcli/ui_root.py", line 70, in ui_command_saveconfig
    f.write(json.dumps(RTSRoot().dump(), sort_keys=True, indent=2))
  File "/usr/lib/python2.6/site-packages/rtslib/root.py", line 160, in dump
    d['targets'] = [t.dump() for t in self.targets]
  File "/usr/lib/python2.6/site-packages/rtslib/target.py", line 1453, in dump
    d['tpgs'] = [tpg.dump() for tpg in self.tpgs]
  File "/usr/lib/python2.6/site-packages/rtslib/target.py", line 1283, in dump
    d['node_acls'] =  [acl.dump() for acl in self.node_acls]
  File "/usr/lib/python2.6/site-packages/rtslib/target.py", line 936, in dump
    val = getattr(self, "chap_" + attr, None)
  File "/usr/lib/python2.6/site-packages/rtslib/target.py", line 845, in _get_chap_userid
    value = fread(path).strip()
  File "/usr/lib/python2.6/site-packages/rtslib/utils.py", line 102, in fread
    file_fd = open(path, 'r')
IOError: [Errno 2] No such file or directory: '/sys/kernel/config/target/fc/20:00:00:1b:21:59:12:36/tpgt_1/acls/10:00:00:05:1e:8f:fa:db/auth/userid'
====

This the whole folder contents of /sys/kernel/config/target/fc/20:00:00:1b:21:59:12:36/

http://pastebin.test.redhat.com/85566


Version-Release number of selected component (if applicable):
fcoe-target-utils-2.0rc1.fb10-3.el6.noarch
kernel -262

How reproducible:
100%

Steps to Reproduce:
1. Setup FCoE and try to exit.
2.
3.
  
Actual results:
python complain

Expected results:
configuration saved.

Additional info: