[PATCH] USB: usbnet shouldn't oops on cdc error path

If the string descriptor fetch works, no problem.  Else
make the disconnect() logic -- newly called because of
"recent" changes to interface claiming logic -- use its
fast cleanup path, since we're still not fully set up yet.

Should resolve OSDL bugid 2714; please merge.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/usb/net/usbnet.c

@@ -1157,6 +1157,7 @@ static int cdc_bind (struct usbnet *dev, struct usb_interface *intf)
 
 	status = get_ethernet_addr (dev, info->ether);
 	if (status < 0) {
+		usb_set_intfdata(info->data, NULL);
 		usb_driver_release_interface (&usbnet_driver, info->data);
 		return status;
 	}