diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/host/uhci-q.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c index 8639e903593..693e92c1bd9 100644 --- a/drivers/usb/host/uhci-q.c +++ b/drivers/usb/host/uhci-q.c @@ -1148,8 +1148,9 @@ static int uhci_urb_enqueue(struct usb_hcd *hcd, /* If the new URB is the first and only one on this QH then either * the QH is new and idle or else it's unlinked and waiting to - * become idle, so we can activate it right away. */ - if (qh->queue.next == &urbp->node) + * become idle, so we can activate it right away. But only if the + * queue isn't stopped. */ + if (qh->queue.next == &urbp->node && !qh->is_stopped) uhci_activate_qh(uhci, qh); goto done; @@ -1293,27 +1294,32 @@ static void uhci_scan_qh(struct uhci_hcd *uhci, struct uhci_qh *qh, if (urb->status == -EINPROGRESS) /* Not dequeued */ urb->status = status; else - status = -ECONNRESET; + status = ECONNRESET; /* Not -ECONNRESET */ spin_unlock(&urb->lock); /* Dequeued but completed URBs can't be given back unless * the QH is stopped or has finished unlinking. */ - if (status == -ECONNRESET && - !(qh->is_stopped || QH_FINISHED_UNLINKING(qh))) - return; + if (status == ECONNRESET) { + if (QH_FINISHED_UNLINKING(qh)) + qh->is_stopped = 1; + else if (!qh->is_stopped) + return; + } uhci_giveback_urb(uhci, qh, urb, regs); - if (qh->is_stopped) + if (status < 0) break; } /* If the QH is neither stopped nor finished unlinking (normal case), * our work here is done. */ - restart: - if (!(qh->is_stopped || QH_FINISHED_UNLINKING(qh))) + if (QH_FINISHED_UNLINKING(qh)) + qh->is_stopped = 1; + else if (!qh->is_stopped) return; /* Otherwise give back each of the dequeued URBs */ +restart: list_for_each_entry(urbp, &qh->queue, node) { urb = urbp->urb; if (urb->status != -EINPROGRESS) { |