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linux-next/drivers/soc/tegra/common.c
Yangtao Li 9eb40fa2cd soc/tegra: Don't leak device tree node reference
of_find_node_by_path() acquires a reference to the node returned by it
and that reference needs to be dropped by its caller. soc_is_tegra()
doesn't do that, so fix it.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
[treding: slightly rewrite to avoid inline comparison]
Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-11-22 16:10:04 +01:00

37 lines
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C

/*
* Copyright (C) 2014 NVIDIA CORPORATION. All rights reserved.
*
* 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/of.h>
#include <soc/tegra/common.h>
static const struct of_device_id tegra_machine_match[] = {
{ .compatible = "nvidia,tegra20", },
{ .compatible = "nvidia,tegra30", },
{ .compatible = "nvidia,tegra114", },
{ .compatible = "nvidia,tegra124", },
{ .compatible = "nvidia,tegra132", },
{ .compatible = "nvidia,tegra210", },
{ }
};
bool soc_is_tegra(void)
{
const struct of_device_id *match;
struct device_node *root;
root = of_find_node_by_path("/");
if (!root)
return false;
match = of_match_node(tegra_machine_match, root);
of_node_put(root);
return match != NULL;
}