Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 3.18 15/61] soc/tegra: Don't leak device tree node reference | Date | Mon, 28 Jan 2019 11:25:37 -0500 |
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From: Yangtao Li <tiny.windzz@gmail.com>
[ Upstream commit 9eb40fa2cd2d1f6829e7b49bb22692f754b9cfe0 ]
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> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/soc/tegra/common.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/soc/tegra/common.c b/drivers/soc/tegra/common.c index a71cb74f3674..04323ade15dd 100644 --- a/drivers/soc/tegra/common.c +++ b/drivers/soc/tegra/common.c @@ -20,11 +20,15 @@ static const struct of_device_id tegra_machine_match[] = { 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; - return of_match_node(tegra_machine_match, root) != NULL; + match = of_match_node(tegra_machine_match, root); + of_node_put(root); + + return match != NULL; } -- 2.19.1
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