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path: root/drivers/usb/host/ehci-sched.c
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Diffstat (limited to 'drivers/usb/host/ehci-sched.c')
-rw-r--r--drivers/usb/host/ehci-sched.c43
1 files changed, 31 insertions, 12 deletions
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index e682f2342ef8..8b267b3fd2bb 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);
@@ -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:
@@ -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: