[gnome-keysign: 9/65] bluetoothoffer: avoid exception in deferred when cancel sending

[Gitlab System User <gitlab src gnome org>]

commit 38421b6be700e47c302f77944d777ce6e7347615
Author: RyuzakiKK <aasonykk gmail com>
Date:   Tue Aug 8 19:01:50 2017 +0200

    bluetoothoffer: avoid exception in deferred when cancel sending

 keysign/bluetoothoffer.py | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)
---
diff --git a/keysign/bluetoothoffer.py b/keysign/bluetoothoffer.py
index c146d09..55c767a 100644
--- a/keysign/bluetoothoffer.py
+++ b/keysign/bluetoothoffer.py
@@ -40,7 +40,7 @@ class BluetoothOffer:
     @inlineCallbacks
     def start(self):
         self.stopped = False
-        message = None
+        message = "Back"
         success = False
         if self.server_socket is None:
             self.server_socket = BluetoothSocket(RFCOMM)
@@ -61,13 +61,15 @@ class BluetoothOffer:
                     yield threads.deferToThread(client_socket.sendall, kd_decoded)
                     log.info("Key has been sent")
                     success = True
+                    message = None
         except Exception as e:
             log.error("An error occurred: %s" % e)
             success = False
             message = e
 
-        if not self.stopped:
-            returnValue((success, message))
+        #if not self.stopped:
+        #    returnValue((success, message))
+        returnValue((success, message))
 
     def generate_code(self):
         try:
@@ -90,6 +92,7 @@ class BluetoothOffer:
         # FIXME right now it seems that even after stop()
         # the used port is not released
         log.debug("Stopping bt receive")
+        self.stopped = True
         if self.server_socket:
             self.server_socket.close()
             self.server_socket = None