On Sat, 12 Feb 2005, Martin Devera wrote:
> Oliver Neukum wrote:
> >Please add a printk for the value of "acm" which is freed in acm_disconnect.
> >
> >
> >
> I did:
> and the result is in usboops.5. It was freed only once ...
Oliver may be on to something. Try using this patch instead of your
changes:
--- a/drivers/usb/class/cdc-acm.c Fri Feb 11 22:17:32 2005
+++ b/drivers/usb/class/cdc-acm.c Fri Feb 11 22:16:41 2005
@@ -767,8 +767,15 @@
static void acm_disconnect(struct usb_interface *intf)
{
- struct acm *acm = usb_get_intfdata (intf);
- struct usb_device *usb_dev = interface_to_usbdev(intf);
+ struct acm *acm;
+ struct usb_device *usb_dev;
+
+ dbg("%s 1: intf = %p\n", __FUNCTION__, intf);
+ acm = usb_get_intfdata (intf);
+ dbg(" 2: acm = %p\n", acm);
+ dbg(" 3: acm->dev = %p\n", acm->dev);
+ usb_dev = interface_to_usbdev(intf);
+ dbg(" 4: usb_dev = %p\n", usb_dev);
if (!acm || !acm->dev) {
dbg("disconnect on nonexisting interface");
Alan Stern
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