467 	if (ehci->async->qh_next.qh)  in ehci_ready()
474 	printk("Got problem,check it out, qHD is %p\n",ehci->async->qh_next.qh);  in ehci_ready()
1343       if( ehci->async->qh_next.qh != 0 )  in ehci_hub_control()
1345 …usb_err("Not only cantain one qHD (%p and %p)in asyn. scheduler",ehci->async->qh_next.qh,ehci->asy…  in ehci_hub_control()
5045   if (!head->qh_next.qh) {  in qh_link_async()
5110   qh->qh_next = head->qh_next;  in qh_link_async()
5114   head->qh_next.qh = qh;  in qh_link_async()
5185 		qh->qh_next.qh = qh;
5197 		qh->qh_next = q->qh_next;
5200 		q->qh_next.qh = qh;
5776   qh->qh_next.qh = 0;  in end_unlink_async()
5842         && ehci->async->qh_next.qh == 0)  in end_unlink_async()
5982   while (prev->qh_next.qh != qh)  in start_unlink_async()
5983     prev = prev->qh_next.qh;  in start_unlink_async()
5986   prev->qh_next = qh->qh_next;  in start_unlink_async()
6165   qh = ehci->async->qh_next.qh;  in scan_async()
6346       qh = qh->qh_next.qh;  in scan_async()
6986   ehci->async->qh_next.qh = 0;  in ehci_start()
7892   if ((ehci->async->qh_next.ptr != 0) || (ehci->periodic_sched != 0))  in ehci_work()