diff options
Diffstat (limited to 'drivers/usb/host/ehci-hcd.c')
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 0c3314c41363..93f4cd75845e 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -903,11 +903,14 @@ static int ehci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) qh = (struct ehci_qh *) urb->hcpriv; if (!qh) break; + qh->exception = 1; switch (qh->qh_state) { case QH_STATE_LINKED: - case QH_STATE_COMPLETING: start_unlink_async(ehci, qh); break; + case QH_STATE_COMPLETING: + qh->dequeue_during_giveback = 1; + break; case QH_STATE_UNLINK: case QH_STATE_UNLINK_WAIT: /* already started */ @@ -923,11 +926,14 @@ static int ehci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) qh = (struct ehci_qh *) urb->hcpriv; if (!qh) break; + qh->exception = 1; switch (qh->qh_state) { case QH_STATE_LINKED: - case QH_STATE_COMPLETING: start_unlink_intr(ehci, qh); break; + case QH_STATE_COMPLETING: + qh->dequeue_during_giveback = 1; + break; case QH_STATE_IDLE: qh_completions (ehci, qh); break; @@ -984,6 +990,7 @@ rescan: goto done; } + qh->exception = 1; if (ehci->rh_state < EHCI_RH_RUNNING) qh->qh_state = QH_STATE_IDLE; switch (qh->qh_state) { @@ -1052,13 +1059,12 @@ ehci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep) usb_settoggle(qh->dev, epnum, is_out, 0); if (!list_empty(&qh->qtd_list)) { WARN_ONCE(1, "clear_halt for a busy endpoint\n"); - } else if (qh->qh_state == QH_STATE_LINKED || - qh->qh_state == QH_STATE_COMPLETING) { - + } else { /* The toggle value in the QH can't be updated * while the QH is active. Unlink it now; * re-linking will call qh_refresh(). */ + qh->exception = 1; if (eptype == USB_ENDPOINT_XFER_BULK) start_unlink_async(ehci, qh); else |