linux-kernel - [PATCH] soc/tegra: add of_node

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Message-Id: <20181121124912.22074-1-tiny.windzz@gmail.com>
Date:   Wed, 21 Nov 2018 07:49:12 -0500
From:   Yangtao Li <tiny.windzz@...il.com>
To:     thierry.reding@...il.com, jonathanh@...dia.com
Cc:     linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        Yangtao Li <tiny.windzz@...il.com>
Subject: [PATCH] soc/tegra: add of_node_put()

of_find_node_by_path() acquires a reference to the node
returned by it and that reference needs to be dropped by its caller.
bl_idle_init() doesn't do that, so fix it.

Signed-off-by: Yangtao Li <tiny.windzz@...il.com>
---
 drivers/soc/tegra/common.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/soc/tegra/common.c b/drivers/soc/tegra/common.c
index cd8f41351add..2e30604c9658 100644
--- a/drivers/soc/tegra/common.c
+++ b/drivers/soc/tegra/common.c
@@ -23,10 +23,13 @@ static const struct of_device_id tegra_machine_match[] = {
 bool soc_is_tegra(void)
 {
 	struct device_node *root;
+	bool rc;
 
 	root = of_find_node_by_path("/");
 	if (!root)
 		return false;
 
-	return of_match_node(tegra_machine_match, root) != NULL;
+	rc = of_match_node(tegra_machine_match, root) != NULL;
+	of_node_put(root);
+	return rc;
 }
-- 
2.17.0