linux-kernel - [PATCH 7/7] devfreq: exynos-bus: add missing of_node_put after calling of_parse

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Message-ID: <1467366121-14120-8-git-send-email-peter.chen@nxp.com>
Date:	Fri, 1 Jul 2016 17:42:01 +0800
From:	Peter Chen <peter.chen@....com>
To:	<linux-renesas-soc@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>,
	<linux-samsung-soc@...r.kernel.org>
CC:	Peter Chen <peter.chen@....com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	MyungJoo Ham <myungjoo.ham@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Kukjin Kim <kgene@...nel.org>,
	"Krzysztof Kozlowski" <k.kozlowski@...sung.com>
Subject: [PATCH 7/7] devfreq: exynos-bus: add missing of_node_put after calling of_parse_phandle

of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Cc: Chanwoo Choi <cw00.choi@...sung.com>
Cc: MyungJoo Ham <myungjoo.ham@...sung.com>
Cc: Kyungmin Park <kyungmin.park@...sung.com>
Cc: Kukjin Kim <kgene@...nel.org>
Cc: Krzysztof Kozlowski <k.kozlowski@...sung.com>
Signed-off-by: Peter Chen <peter.chen@....com>
---
 drivers/devfreq/exynos-bus.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c
index 2363d0a..a38b5ec 100644
--- a/drivers/devfreq/exynos-bus.c
+++ b/drivers/devfreq/exynos-bus.c
@@ -383,7 +383,7 @@ err_clk:
 static int exynos_bus_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct device_node *np = dev->of_node;
+	struct device_node *np = dev->of_node, node;
 	struct devfreq_dev_profile *profile;
 	struct devfreq_simple_ondemand_data *ondemand_data;
 	struct devfreq_passive_data *passive_data;
@@ -415,10 +415,13 @@ static int exynos_bus_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	if (of_parse_phandle(dev->of_node, "devfreq", 0))
+	node = of_parse_phandle(dev->of_node, "devfreq", 0);
+	if (node) {
+		of_node_put(node);
 		goto passive;
-	else
+	} else {
 		ret = exynos_bus_parent_parse_of(np, bus);
+	}
 
 	if (ret < 0)
 		goto err;
-- 
1.9.1