1/*
2 * u_f.c -- USB function utilities for Gadget stack
3 *
4 * Copyright (c) 2013 Samsung Electronics Co., Ltd.
5 *		http://www.samsung.com
6 *
7 * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14#include <linux/usb/gadget.h>
15#include "u_f.h"
16
17struct usb_request *alloc_ep_req(struct usb_ep *ep, int len, int default_len)
18{
19	struct usb_request      *req;
20
21	req = usb_ep_alloc_request(ep, GFP_ATOMIC);
22	if (req) {
23		req->length = len ?: default_len;
24		req->buf = kmalloc(req->length, GFP_ATOMIC);
25		if (!req->buf) {
26			usb_ep_free_request(ep, req);
27			req = NULL;
28		}
29	}
30	return req;
31}
32EXPORT_SYMBOL_GPL(alloc_ep_req);
33