text: /*
   *  Atheros AR71XX/AR724X/AR913X common GPIO LEDs support
   *
   *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
   *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
   *
   *  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/init.h>
  #include <linux/slab.h>
  #include <linux/platform_device.h>
  
  #include "dev-leds-gpio.h"
  
  void __init ath79_register_leds_gpio(int id,
  				     unsigned num_leds,
  				     struct gpio_led *leds)
  {
  	struct platform_device *pdev;
  	struct gpio_led_platform_data pdata;
  	struct gpio_led *p;
  	int err;
  
  	p = kmalloc(num_leds * sizeof(*p), GFP_KERNEL);
  	if (!p)
  		return;
  
  	memcpy(p, leds, num_leds * sizeof(*p));
  
  	pdev = platform_device_alloc("leds-gpio", id);
  	if (!pdev)
  		goto err_free_leds;
  
  	memset(&pdata, 0, sizeof(pdata));
  	pdata.num_leds = num_leds;
  	pdata.leds = p;
  
  	err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
  	if (err)
  		goto err_put_pdev;
  
  	err = platform_device_add(pdev);
  	if (err)
  		goto err_put_pdev;
  
  	return;
  
  err_put_pdev:
  	platform_device_put(pdev);
  
  err_free_leds:
  	kfree(p);
  }
  