1 files changed, 33 insertions, 14 deletions

diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index e682f2342ef8..80d99bce2b38 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -797,7 +797,6 @@ done:
 
 static int intr_submit (
         struct ehci_hcd         *ehci,
-        struct usb_host_endpoint *ep,
         struct urb              *urb,
         struct list_head        *qtd_list,
         gfp_t                   mem_flags
@@ -805,23 +804,26 @@ static int intr_submit (
         unsigned                epnum;
         unsigned long           flags;
         struct ehci_qh          *qh;
-        int                     status = 0;
+        int                     status;
         struct list_head        empty;
 
         /* get endpoint and transfer/schedule data */
-        epnum = ep->desc.bEndpointAddress;
+        epnum = urb->ep->desc.bEndpointAddress;
 
         spin_lock_irqsave (&ehci->lock, flags);
 
         if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE,
                         &ehci_to_hcd(ehci)->flags))) {
                 status = -ESHUTDOWN;
-                goto done;
+                goto done_not_linked;
         }
+        status = usb_hcd_link_urb_to_ep(ehci_to_hcd(ehci), urb);
+        if (unlikely(status))
+                goto done_not_linked;
 
         /* get qh and force any scheduling errors */
         INIT_LIST_HEAD (&empty);
-        qh = qh_append_tds (ehci, urb, &empty, epnum, &ep->hcpriv);
+        qh = qh_append_tds(ehci, urb, &empty, epnum, &urb->ep->hcpriv);
         if (qh == NULL) {
                 status = -ENOMEM;
                 goto done;
@@ -832,13 +834,16 @@ static int intr_submit (
         }
 
         /* then queue the urb's tds to the qh */
-        qh = qh_append_tds (ehci, urb, qtd_list, epnum, &ep->hcpriv);
+        qh = qh_append_tds(ehci, urb, qtd_list, epnum, &urb->ep->hcpriv);
         BUG_ON (qh == NULL);
 
         /* ... update usbfs periodic stats */
         ehci_to_hcd(ehci)->self.bandwidth_int_reqs++;
 
 done:
+        if (unlikely(status))
+                usb_hcd_unlink_urb_from_ep(ehci_to_hcd(ehci), urb);
+done_not_linked:
         spin_unlock_irqrestore (&ehci->lock, flags);
         if (status)
                 qtd_list_free (ehci, urb, qtd_list);
@@ -1622,7 +1627,7 @@ itd_complete (
 
         /* give urb back to the driver ... can be out-of-order */
         dev = urb->dev;
-        ehci_urb_done (ehci, urb);
+        ehci_urb_done(ehci, urb, 0);
         urb = NULL;
 
         /* defer stopping schedule; completion can submit */
@@ -1686,12 +1691,19 @@ static int itd_submit (struct ehci_hcd *ehci, struct urb *urb,
         /* schedule ... need to lock */
         spin_lock_irqsave (&ehci->lock, flags);
         if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE,
-                               &ehci_to_hcd(ehci)->flags)))
+                               &ehci_to_hcd(ehci)->flags))) {
                 status = -ESHUTDOWN;
-        else
-                status = iso_stream_schedule (ehci, urb, stream);
+                goto done_not_linked;
+        }
+        status = usb_hcd_link_urb_to_ep(ehci_to_hcd(ehci), urb);
+        if (unlikely(status))
+                goto done_not_linked;
+        status = iso_stream_schedule(ehci, urb, stream);
         if (likely (status == 0))
                 itd_link_urb (ehci, urb, ehci->periodic_size << 3, stream);
+        else
+                usb_hcd_unlink_urb_from_ep(ehci_to_hcd(ehci), urb);
+done_not_linked:
         spin_unlock_irqrestore (&ehci->lock, flags);
 
 done:
@@ -1988,7 +2000,7 @@ sitd_complete (
 
         /* give urb back to the driver */
         dev = urb->dev;
-        ehci_urb_done (ehci, urb);
+        ehci_urb_done(ehci, urb, 0);
         urb = NULL;
 
         /* defer stopping schedule; completion can submit */
@@ -2049,12 +2061,19 @@ static int sitd_submit (struct ehci_hcd *ehci, struct urb *urb,
         /* schedule ... need to lock */
         spin_lock_irqsave (&ehci->lock, flags);
         if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE,
-                               &ehci_to_hcd(ehci)->flags)))
+                               &ehci_to_hcd(ehci)->flags))) {
                 status = -ESHUTDOWN;
-        else
-                status = iso_stream_schedule (ehci, urb, stream);
+                goto done_not_linked;
+        }
+        status = usb_hcd_link_urb_to_ep(ehci_to_hcd(ehci), urb);
+        if (unlikely(status))
+                goto done_not_linked;
+        status = iso_stream_schedule(ehci, urb, stream);
         if (status == 0)
                 sitd_link_urb (ehci, urb, ehci->periodic_size << 3, stream);
+        else
+                usb_hcd_unlink_urb_from_ep(ehci_to_hcd(ehci), urb);
+done_not_linked:
         spin_unlock_irqrestore (&ehci->lock, flags);
 
 done: