u-boot/lib/libfdt/fdt_empty_tree.c

/*
 * libfdt - Flat Device Tree manipulation
 * Copyright (C) 2012 David Gibson, IBM Corporation.
 * SPDX-License-Identifier:	GPL-2.0+ BSD-2-Clause
 */
#include <libfdt_env.h>
#include <fdt.h>
#include <libfdt.h>

#include "libfdt_internal.h"

int fdt_create_empty_tree(void *buf, int bufsize)
{
	int err;

	err = fdt_create(buf, bufsize);
	if (err)
		return err;

	err = fdt_finish_reservemap(buf);
	if (err)
		return err;

	err = fdt_begin_node(buf, "");
	if (err)
		return err;

	err =  fdt_end_node(buf);
	if (err)
		return err;

	err = fdt_finish(buf);
	if (err)
		return err;

	return fdt_open_into(buf, buf, bufsize);
}