hcd->poll_rh = 0; del_timer(&hcd->rh_timer); 
void usb_hc_died (struct usb_hcd *hcd){	unsigned long flags;	dev_err (hcd->self.controller, "HC died; cleaning up\n");	spin_lock_irqsave (&hcd_root_hub_lock, flags);	if (hcd->rh_registered) {		/* make khubd clean up old urbs and devices */		usb_set_device_state (hcd->self.root_hub,				USB_STATE_NOTATTACHED);		usb_kick_khubd (hcd->self.root_hub);	}	spin_unlock_irqrestore (&hcd_root_hub_lock, flags);}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/d5926ae7a827bdd06b588ffbc56fd4525cd9214a/hcd.c/buggy/drivers/usb/core/hcd.c