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isp1760-hcd: move dequeued qtds to the front in qh 

Make sure that dequeued urbs get handled first
by collect_qtds. To achieve that we better move them
up to the head in the qh list.

This for instance fixes hanging serial devices, which wait
for dequeued urbs to properly close their device node.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michael Grzeschik 2012-04-18 09:58:23 +02:00 committed by Greg Kroah-Hartman
parent 94011ec24c
commit 8cb2268001
1 changed files with 1 additions and 0 deletions
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1
drivers/usb/host/isp1760-hcd.c
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@ -1683,6 +1683,7 @@ static int isp1760_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
list_for_each_entry(qtd, &qh->qtd_list, qtd_list)
if (qtd->urb == urb) {
dequeue_urb_from_qtd(hcd, qh, qtd);
list_move(&qtd->qtd_list, &qh->qtd_list);
break;
}