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-rw-r--r--drivers/usb/host/uhci-q.c24
1 files changed, 15 insertions, 9 deletions
diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c
index 8639e9035931..693e92c1bd9e 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) {