No need to release mutex here.

Change-Id: I9e8d8a58d32339760ecd0e56be496e8753a38522

diff --git a/src/paho/mqtt/client.py b/src/paho/mqtt/client.py
index e2f9c201e95639748e2af43e3e5af4f62786fcd1..7547797b4f004b61c41fd44539c80b280dfce477 100755 (executable)
--- a/src/paho/mqtt/client.py
+++ b/src/paho/mqtt/client.py
@@ -1460,11 +1460,9 @@ class Client(object):
                     if (packet['command'] & 0xF0) == PUBLISH and packet['qos'] == 0:
                         self._callback_mutex.acquire()
                         if self.on_publish:
-                            self._out_message_mutex.release()
                             self._in_callback = True
                             self.on_publish(self, self._userdata, packet['mid'])
                             self._in_callback = False
-                            self._out_message_mutex.acquire()
 
                         self._callback_mutex.release()