Hi,
This patch make the usb_unlink_urb() behave like the usb-ohci and
usb-uhci controllers, so that it returns -EINPROGRESS with
asynchronous URBs. I originally submitted this patch during the
2.4.21-pre series, in the hope that it would make its way into
2.4.22. However, it doesn't seem to have been included yet. Is it too
late, or is there a problem with the patch?
Cheers,
Chris
--- linux-2.4.21/drivers/usb/host/uhci.c.orig Fri Jun 13 21:20:37 2003
+++ linux-2.4.21/drivers/usb/host/uhci.c Fri Jun 13 21:22:10 2003
@@ -1741,6 +1741,7 @@
struct uhci *uhci;
unsigned long flags;
struct urb_priv *urbp = urb->hcpriv;
+ int ret;
if (!urb)
return -EINVAL;
@@ -1778,6 +1779,8 @@
uhci_unlink_generic(uhci, urb);
+ ret = 0;
+
/* Short circuit the virtual root hub */
if (urb->dev == uhci->rh.dev) {
rh_unlink_urb(urb);
@@ -1802,6 +1805,7 @@
spin_unlock(&urb->lock);
spin_unlock_irqrestore(&uhci->urb_list_lock, flags);
+ ret = -EINPROGRESS;
} else {
urb->status = -ENOENT;
@@ -1822,7 +1826,7 @@
}
}
- return 0;
+ return ret;
}
static int uhci_fsbr_timeout(struct uhci *uhci, struct urb *urb)
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