Set client object for connlost callback in MQTTAsync_subscribe sample #176

src/samples/MQTTAsync_subscribe.c

@@ -45,6 +45,7 @@ void connlost(void *context, char *cause)
 	int rc;
 
 	printf("\nConnection lost\n");
+	if (cause)
 		printf("     cause: %s\n", cause);
 
 	printf("Reconnecting\n");
@@ -143,7 +144,7 @@ int main(int argc, char* argv[])
 
 	MQTTAsync_create(&client, ADDRESS, CLIENTID, MQTTCLIENT_PERSISTENCE_NONE, NULL);
 
-	MQTTAsync_setCallbacks(client, NULL, connlost, msgarrvd, NULL);
+	MQTTAsync_setCallbacks(client, client, connlost, msgarrvd, NULL);
 
 	conn_opts.keepAliveInterval = 20;
 	conn_opts.cleansession = 1;