280     usb_host_ohci_pipe_struct_t *pre;  in USB_HostOhciRemovePipe()  local
287     pre = NULL;  in USB_HostOhciRemovePipe()
292             pre  = p;  in USB_HostOhciRemovePipe()
298             if (NULL == pre)  in USB_HostOhciRemovePipe()
305                 pre->pipeCommon.next = p->pipeCommon.next;  in USB_HostOhciRemovePipe()
484     usb_host_ohci_isochronous_transfer_descritpor_struct_t *pre;  in USB_HostOhciFreeItd()  local
493     pre = NULL;  in USB_HostOhciFreeItd()
503         pre = p;  in USB_HostOhciFreeItd()
506     if (NULL == pre)  in USB_HostOhciFreeItd()
512         pre->NextTD = (uint32_t)itd;  in USB_HostOhciFreeItd()
755     usb_host_ohci_endpoint_descritpor_struct_t *pre;  in USB_HostOhciAddToPeriodicList()  local
761         pre = ed;  in USB_HostOhciAddToPeriodicList()
763         while (NULL != pre)  in USB_HostOhciAddToPeriodicList()
765             if (pre == pipe->ed)  in USB_HostOhciAddToPeriodicList()
769             pre = (usb_host_ohci_endpoint_descritpor_struct_t *)pre->NextED;  in USB_HostOhciAddToPeriodicList()
772         if (NULL != pre)  in USB_HostOhciAddToPeriodicList()
777         pre = NULL;  in USB_HostOhciAddToPeriodicList()
790             pre = ed;  in USB_HostOhciAddToPeriodicList()
794         if (NULL != pre)  in USB_HostOhciAddToPeriodicList()
796             pre->NextED = (uint32_t)pipe->ed;  in USB_HostOhciAddToPeriodicList()
1443     usb_host_ohci_endpoint_descritpor_struct_t *pre;  in USB_HostOhciRemoveFromPeriodicList()  local
1447         pre = NULL;  in USB_HostOhciRemoveFromPeriodicList()
1455                 if (NULL == pre)  in USB_HostOhciRemoveFromPeriodicList()
1461                     pre->NextED = ed->NextED;  in USB_HostOhciRemoveFromPeriodicList()
1465             pre = ed;  in USB_HostOhciRemoveFromPeriodicList()