skb_return (dev, skb); 
usbnet_skb_return (dev, skb); 
static inline void rx_process (struct usbnet *dev, struct sk_buff *skb){	if (dev->driver_info->rx_fixup			&& !dev->driver_info->rx_fixup (dev, skb))		goto error;	// else network stack removes extra byte if we forced a short packet	if (skb->len)		skb_return (dev, skb);	else {		if (netif_msg_rx_err (dev))			devdbg (dev, "drop");error:		dev->stats.rx_errors++;		skb_queue_tail (&dev->done, skb);	}}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/2e55cc7210fef90f88201e860d8767594974574e/usbnet.c/buggy/drivers/usb/net/usbnet.c