4.20-stable review patch. If anyone has any objections, please let me know.
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[ 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 cd8f41351add..7bfb154d6fa5 100644 --- a/drivers/soc/tegra/common.c +++ b/drivers/soc/tegra/common.c @@ -22,11 +22,15 @@ 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; }