https://github.com/torvalds/linux
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Tip revision: d012a7190fc1fd72ed48911e77ca97ba4521bccd authored by Linus Torvalds on 23 August 2020, 21:08:43 UTC
Linux 5.9-rc2
Tip revision: d012a71
buttons.c
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  Cobalt buttons platform device.
 *
 *  Copyright (C) 2007  Yoichi Yuasa <yuasa@linux-mips.org>
 */

#include <linux/platform_device.h>
#include <linux/errno.h>
#include <linux/init.h>

static struct resource cobalt_buttons_resource __initdata = {
	.start	= 0x1d000000,
	.end	= 0x1d000003,
	.flags	= IORESOURCE_MEM,
};

static __init int cobalt_add_buttons(void)
{
	struct platform_device *pd;
	int error;

	pd = platform_device_alloc("Cobalt buttons", -1);
	if (!pd)
		return -ENOMEM;

	error = platform_device_add_resources(pd, &cobalt_buttons_resource, 1);
	if (error)
		goto err_free_device;

	error = platform_device_add(pd);
	if (error)
		goto err_free_device;

	return 0;

 err_free_device:
	platform_device_put(pd);
	return error;
}
device_initcall(cobalt_add_buttons);
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