leds-gpio-register.c

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/*
 * Copyright (C) 2011 Pengutronix
 * Uwe Kleine-Koenig <[email protected]>
 *
 * 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/err.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/leds.h>

struct platform_device *__init gpio_led_register_device(
        int id, const struct gpio_led_platform_data *pdata)
{
    struct platform_device *ret;
    struct gpio_led_platform_data _pdata = *pdata;

    _pdata.leds = kmemdup(pdata->leds,
            pdata->num_leds * sizeof(*pdata->leds), GFP_KERNEL);
    if (!_pdata.leds)
        return ERR_PTR(-ENOMEM);

    ret = platform_device_register_resndata(NULL, "leds-gpio", id,
            NULL, 0, &_pdata, sizeof(_pdata));
    if (IS_ERR(ret))
        kfree(_pdata.leds);

    return ret;
}