ledtrig-netdev: don't cancel work on events for different interfaces

This fixes logic bug(in function netdev_trig_notify) introduced in
0b2991a8ed commit.
Events triggered by different interfaces were stopping work queue so it
wasn't working for tx/rx mode.

Signed-off-by: Sergey Sergeev <adron@yapic.net>

target/linux/generic/files/drivers/leds/ledtrig-netdev.c

@@ -267,13 +267,13 @@ static int netdev_trig_notify(struct notifier_block *nb,
 	if (evt != NETDEV_UP && evt != NETDEV_DOWN && evt != NETDEV_CHANGE && evt != NETDEV_REGISTER && evt != NETDEV_UNREGISTER && evt != NETDEV_CHANGENAME)
 		return NOTIFY_DONE;
 
+	if (strcmp(dev->name, trigger_data->device_name))
+		return NOTIFY_DONE;
+
 	cancel_delayed_work_sync(&trigger_data->work);
 
 	spin_lock_bh(&trigger_data->lock);
 
-	if (strcmp(dev->name, trigger_data->device_name))
-		goto done;
-
 	if (evt == NETDEV_REGISTER || evt == NETDEV_CHANGENAME) {
 		if (trigger_data->net_dev != NULL)
 			dev_put(trigger_data->net_dev);