autotest: reset wifi ap config state on deconfig

server/site_linux_router.py

 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import logging, re, time
 from autotest_lib.client.common_lib import error
 
 def isLinuxRouter(router):
     router_uname = router.run('uname').stdout
     return re.search('Linux', router_uname)
@@ skipping 327 matching lines @@
                                      ignore_status=True)
             if not result.stderr or 'No such device' in result.stderr:
                 break
             time.sleep(1)
         else:
             raise error.TestFail("Unable to delete bridge %s: %s" %
                                  (self.bridgeif, result.stderr))
 
 
         self.hostapd['configured'] = False
+        # reset config state to default
+        self.hostapd['conf'] = {
+            'ssid': self.defssid,
+            'bridge': self.bridgeif,
+            'hw_mode': 'g'
+        }
 
 
     def get_ssid(self):
         return self.hostapd['conf']['ssid']
 
 
     def set_txpower(self, params):
         self.router.run("%s dev %s set txpower %s" %
                         (self.cmd_iw, params.get('interface',
                                                  self.hostapd['interface']),
                          params.get('power', 'auto')))