linux/drivers/usb/gadget/u_f.c
Felipe Balbi 0700faaf73 usb: gadget: only GPL drivers in the gadget and phy framework
We only support GPL drivers in the USB Gadget Framework,
it sounds correct to make all exported symbols GPL too.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21 14:07:12 -05:00

33 lines
814 B
C

/*
* u_f.c -- USB function utilities for Gadget stack
*
* Copyright (c) 2013 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/usb/gadget.h>
#include "u_f.h"
struct usb_request *alloc_ep_req(struct usb_ep *ep, int len, int default_len)
{
struct usb_request *req;
req = usb_ep_alloc_request(ep, GFP_ATOMIC);
if (req) {
req->length = len ?: default_len;
req->buf = kmalloc(req->length, GFP_ATOMIC);
if (!req->buf) {
usb_ep_free_request(ep, req);
req = NULL;
}
}
return req;
}
EXPORT_SYMBOL_GPL(alloc_ep_req);