fix locking issue

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@8130 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_portaudio/mod_portaudio.c

@@ -539,9 +539,10 @@ static switch_status_t channel_read_frame(switch_core_session_t *session, switch
 		return SWITCH_STATUS_SUCCESS;
 	}
 
- get_samples:
 	switch_mutex_lock(globals.device_lock);
 
+ get_samples:
+
 	if ((samples = ReadAudioStream(globals.audio_stream, globals.read_frame.data, 
 								   globals.read_codec.implementation->samples_per_frame, 
 								   &globals.timer)) == 0) {