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authorYangtao Li <tiny.windzz@gmail.com>2018-11-21 07:31:38 -0500
committerJacek Anaszewski <jacek.anaszewski@gmail.com>2018-11-21 20:23:14 +0100
commite41ca3b1eab89f3d50d0910adb7d6f49ac82d604 (patch)
tree84286e70017fed074252c9bb6e7c7ca4fd5d86b4 /drivers/leds
parent9ff01193a20d391e8dbce4403dd5ef87c7eaaca6 (diff)
downloadlinux-e41ca3b1eab89f3d50d0910adb7d6f49ac82d604.tar.gz
leds: powernv: 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.
powernv_led_probe() doesn't do that, so fix it.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Diffstat (limited to 'drivers/leds')
-rw-r--r--drivers/leds/leds-powernv.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/leds/leds-powernv.c b/drivers/leds/leds-powernv.c
index b1adbd70ce2e..fbab86cb3cc7 100644
--- a/drivers/leds/leds-powernv.c
+++ b/drivers/leds/leds-powernv.c
@@ -285,6 +285,7 @@ static int powernv_led_probe(struct platform_device *pdev)
 	struct device_node *led_node;
 	struct powernv_led_common *powernv_led_common;
 	struct device *dev = &pdev->dev;
+	int rc;
 
 	led_node = of_find_node_by_path("/ibm,opal/leds");
 	if (!led_node) {
@@ -295,15 +296,20 @@ static int powernv_led_probe(struct platform_device *pdev)
 
 	powernv_led_common = devm_kzalloc(dev, sizeof(*powernv_led_common),
 					  GFP_KERNEL);
-	if (!powernv_led_common)
-		return -ENOMEM;
+	if (!powernv_led_common) {
+		rc = -ENOMEM;
+		goto out;
+	}
 
 	mutex_init(&powernv_led_common->lock);
 	powernv_led_common->max_led_type = cpu_to_be64(OPAL_SLOT_LED_TYPE_MAX);
 
 	platform_set_drvdata(pdev, powernv_led_common);
 
-	return powernv_led_classdev(pdev, led_node, powernv_led_common);
+	rc = powernv_led_classdev(pdev, led_node, powernv_led_common);
+out:
+	of_node_put(led_node);
+	return rc;
 }
 
 /* Platform driver remove */