void dwc3_gadget_del_and_unmap_request(struct dwc3_ep *dep,
		struct dwc3_request *req, int status)
{
	struct dwc3			*dwc = dep->dwc;

	req->started = false;
	list_del(&req->list);
	req->remaining = 0;

	if (req->request.status == -EINPROGRESS)
		req->request.status = status;

	if (req->trb)
		usb_gadget_unmap_request_by_dev(dwc->sysdev,
				&req->request, req->direction);

	req->trb = NULL;
	trace_dwc3_gadget_giveback(req);

	if (dep->number > 1)
		pm_runtime_put(dwc->dev);
}
The software does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.