b/f: small timer mem leak when unregistering fails

apps/db_reg_agent/DBRegAgent.cpp

@@ -388,6 +388,7 @@ void DBRegAgent::createRegistration(long subscriber_id,
       registrations_mut.unlock();
       WARN("registration with ID %ld already exists, removing\n", subscriber_id);
       removeRegistration(subscriber_id);
+      clearRegistrationTimer(subscriber_id);
       registrations_mut.lock();
     }
 
@@ -822,6 +823,12 @@ void DBRegAgent::onSipReplyEvent(AmSipReplyEvent* ev) {
 	}
       }
 
+      if (registration->getUnregistering()) {
+	registrations_mut.unlock();
+	removeRegistration(subscriber_id);
+	registrations_mut.lock();
+      }
+
       if (!delete_status) {
 	if (auth_pending && !save_auth_replies) {
 	  DBG("not updating DB with auth reply %u %s\n",