usb_poison_anchored_urbs
usb_poison_anchored_urbs(&ar->tx_anch);
usb_poison_anchored_urbs(&ar->rx_anch);
usb_poison_anchored_urbs(&ar->tx_anch);
usb_poison_anchored_urbs(&usblp->urbs);
EXPORT_SYMBOL_GPL(usb_poison_anchored_urbs);
extern void usb_poison_anchored_urbs(struct usb_anchor *anchor);