static int hwahc_create(struct hwahc *hwahc, struct usb_interface *iface,
	kernel_ulong_t quirks)
{
	int result;
	struct device *dev = &iface->dev;
	struct wusbhc *wusbhc = &hwahc->wusbhc;
	struct wahc *wa = &hwahc->wa;
	struct usb_device *usb_dev = interface_to_usbdev(iface);

	wa->usb_dev = usb_get_dev(usb_dev);	/* bind the USB device */
	wa->usb_iface = usb_get_intf(iface);
	wusbhc->dev = dev;
	/* defer getting the uwb_rc handle until it is needed since it
	 * may not have been registered by the hwa_rc driver yet. */
	wusbhc->uwb_rc = NULL;
	result = wa_fill_descr(wa);	/* Get the device descriptor */
	if (result < 0)
		goto error_fill_descriptor;
	if (wa->wa_descr->bNumPorts > USB_MAXCHILDREN) {
		dev_err(dev, "FIXME: USB_MAXCHILDREN too low for WUSB "
			"adapter (%u ports)\n", wa->wa_descr->bNumPorts);
		wusbhc->ports_max = USB_MAXCHILDREN;
	} else {
		wusbhc->ports_max = wa->wa_descr->bNumPorts;
	}
	wusbhc->mmcies_max = wa->wa_descr->bNumMMCIEs;
	wusbhc->start = __hwahc_op_wusbhc_start;
	wusbhc->stop = __hwahc_op_wusbhc_stop;
	wusbhc->mmcie_add = __hwahc_op_mmcie_add;
	wusbhc->mmcie_rm = __hwahc_op_mmcie_rm;
	wusbhc->dev_info_set = __hwahc_op_dev_info_set;
	wusbhc->bwa_set = __hwahc_op_bwa_set;
	wusbhc->set_num_dnts = __hwahc_op_set_num_dnts;
	wusbhc->set_ptk = __hwahc_op_set_ptk;
	wusbhc->set_gtk = __hwahc_op_set_gtk;
	result = hwahc_security_create(hwahc);
	if (result < 0) {
		dev_err(dev, "Can't initialize security: %d\n", result);
		goto error_security_create;
	}
	wa->wusb = wusbhc;	/* FIXME: ugly, need to fix */
	result = wusbhc_create(&hwahc->wusbhc);
	if (result < 0) {
		dev_err(dev, "Can't create WUSB HC structures: %d\n", result);
		goto error_wusbhc_create;
	}
	result = wa_create(&hwahc->wa, iface, quirks);
	if (result < 0)
		goto error_wa_create;
	return 0;

error_wa_create:
	wusbhc_destroy(&hwahc->wusbhc);
error_wusbhc_create:
	/* WA Descr fill allocs no resources */
error_security_create:
error_fill_descriptor:
	usb_put_intf(iface);
	usb_put_dev(usb_dev);
	return result;
}

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.