Preparation for patch #2. The function isp1760_endpoint_disable() does almost
the same thing as urb_dequeue(). In patch #2 I change these to use a common
helper function instead of calling each other - for clarity but also to
avoid releasing the spinlock while in a "questionable" state. It seemed
proper to have these functions close to each other in the code.
Signed-off-by: Arvid Brodin <arvid.brodin@xxxxxxxx>
---
drivers/usb/host/isp1760-hcd.c | 68 ++++++++++++++++++++--------------------
1 files changed, 34 insertions(+), 34 deletions(-)
diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c
index dd98a96..485fc70 100644
--- a/drivers/usb/host/isp1760-hcd.c
+++ b/drivers/usb/host/isp1760-hcd.c
@@ -1558,6 +1558,40 @@ out:
return retval;
}
+static void isp1760_endpoint_disable(struct usb_hcd *hcd,
+ struct usb_host_endpoint *ep)
+{
+ struct isp1760_hcd *priv = hcd_to_priv(hcd);
+ struct isp1760_qh *qh;
+ struct isp1760_qtd *qtd;
+ unsigned long spinflags;
+ int do_iter;
+
+ spin_lock_irqsave(&priv->lock, spinflags);
+ qh = ep->hcpriv;
+ if (!qh)
+ goto out;
+
+ do_iter = !list_empty(&qh->qtd_list);
+ while (do_iter) {
+ do_iter = 0;
+ list_for_each_entry(qtd, &qh->qtd_list, qtd_list) {
+ if (qtd->urb->ep == ep) {
+ spin_unlock_irqrestore(&priv->lock, spinflags);
+ isp1760_urb_dequeue(hcd, qtd->urb, -ECONNRESET);
+ spin_lock_irqsave(&priv->lock, spinflags);
+ do_iter = 1;
+ break; /* Restart iteration */
+ }
+ }
+ }
+ ep->hcpriv = NULL;
+ /* Cannot free qh here since it will be parsed by schedule_ptds() */
+
+out:
+ spin_unlock_irqrestore(&priv->lock, spinflags);
+}
+
static int isp1760_hub_status_data(struct usb_hcd *hcd, char *buf)
{
struct isp1760_hcd *priv = hcd_to_priv(hcd);
@@ -1927,40 +1961,6 @@ error:
return retval;
}
-static void isp1760_endpoint_disable(struct usb_hcd *hcd,
- struct usb_host_endpoint *ep)
-{
- struct isp1760_hcd *priv = hcd_to_priv(hcd);
- struct isp1760_qh *qh;
- struct isp1760_qtd *qtd;
- unsigned long spinflags;
- int do_iter;
-
- spin_lock_irqsave(&priv->lock, spinflags);
- qh = ep->hcpriv;
- if (!qh)
- goto out;
-
- do_iter = !list_empty(&qh->qtd_list);
- while (do_iter) {
- do_iter = 0;
- list_for_each_entry(qtd, &qh->qtd_list, qtd_list) {
- if (qtd->urb->ep == ep) {
- spin_unlock_irqrestore(&priv->lock, spinflags);
- isp1760_urb_dequeue(hcd, qtd->urb, -ECONNRESET);
- spin_lock_irqsave(&priv->lock, spinflags);
- do_iter = 1;
- break; /* Restart iteration */
- }
- }
- }
- ep->hcpriv = NULL;
- /* Cannot free qh here since it will be parsed by schedule_ptds() */
-
-out:
- spin_unlock_irqrestore(&priv->lock, spinflags);
-}
-
static int isp1760_get_frame(struct usb_hcd *hcd)
{
struct isp1760_hcd *priv = hcd_to_priv(hcd);
--
1.6.3.3
--
Arvid Brodin
Enea Services Stockholm AB
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