linux-kernel - [PATCH] leds: omnia: fix leak of device node iterator

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Date:   Sat, 26 Sep 2020 01:18:23 +0200
From:   Tobias Jordan <kernel@...e.de>
To:     linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Pavel Machek <pavel@....cz>, Dan Murphy <dmurphy@...com>,
        Marek Behún <marek.behun@....cz>
Subject: [PATCH] leds: omnia: fix leak of device node iterator

In the error path of the for_each_available_child_of_node loop in
omnia_leds_probe, add missing call to of_node_put to fix leaking the
iterator.

Fixes: 089381b27abe ("leds: initial support for Turris Omnia LEDs")
Signed-off-by: Tobias Jordan <kernel@...e.de>
---
 drivers/leds/leds-turris-omnia.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/leds/leds-turris-omnia.c b/drivers/leds/leds-turris-omnia.c
index bb23d8e16614..6c3d3d90f277 100644
--- a/drivers/leds/leds-turris-omnia.c
+++ b/drivers/leds/leds-turris-omnia.c
@@ -236,8 +236,10 @@ static int omnia_leds_probe(struct i2c_client *client,
 	led = &leds->leds[0];
 	for_each_available_child_of_node(np, child) {
 		ret = omnia_led_register(client, led, child);
-		if (ret < 0)
+		if (ret < 0) {
+			of_node_put(child);
 			return ret;
+		}
 
 		led += ret;
 	}
-- 
2.20.1