On Thu, 14 Jun 2007, Olav Kongas wrote:
> Hi Alan,
>
> > Index: usb-2.6/drivers/usb/host/isp116x-hcd.c
> > ===================================================================
> > --- usb-2.6.orig/drivers/usb/host/isp116x-hcd.c
> > +++ usb-2.6/drivers/usb/host/isp116x-hcd.c
> > @@ -583,12 +583,15 @@ static void
> > finish_atl_transfers(struct
> > unpack_fifo(isp116x);
> > postproc_atl_queue(isp116x);
>
> I think it is guaranteed that at this point all the ep's in
> active ATL queue have their urb_list non-empty. There's a
> relevant BUG_ON() in postproc_atl_queue(). The list_empty()
> check below would be unnecessary.
I'll remove the list_empty() test.
> > for (ep = isp116x->atl_active; ep; ep = ep->active)
> > {
> > + if (list_empty(&ep->hep->urb_list))
> > + continue;
> > urb =
> > container_of(ep->hep->urb_list.next,
> > struct urb, urb_list);
> > +
> > /* USB_PID_ACK check here avoids finishing of
> > control transfers, for which TD_DATAUNDERRUN
> > occured, while URB_SHORT_NOT_OK was set */
> > - if (urb && urb->status != -EINPROGRESS
> ^^^
> Yes, this is wrong. Thanks. As you are already at it, please
> remove it.
Will do. Thanks for the feedback.
Alan Stern
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