PM / 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.

[Commit updated to fix an error by MyungJoo]

Cc: Chanwoo Choi <cw00.choi@samsung.com>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c
index e946f8f289cb..29866f7e6d7e 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;