linux-kernel - [PATCH v3] leds: tlc591xx: fix leak of device node iterator

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Date:   Sat, 26 Sep 2020 18:27:56 +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>,
        Tomi Valkeinen <tomi.valkeinen@...com>,
        Marek Behún <kabel@...nel.org>,
        Markus Elfring <Markus.Elfring@....de>
Subject: [PATCH v3] leds: tlc591xx: fix leak of device node iterator

In one of the error paths of the for_each_child_of_node loop in
tlc591xx_probe, add missing call to of_node_put.

Fixes: 1ab4531ad132 ("leds: tlc591xx: simplify driver by using the managed led API")
Signed-off-by: Tobias Jordan <kernel@...e.de>
Reviewed-by: Marek Behún <kabel@...nel.org>

---
v3: removed linebreak from Fixes: tag in commit message
v2: rebased to Pavel's for-next branch

 drivers/leds/leds-tlc591xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/leds/leds-tlc591xx.c b/drivers/leds/leds-tlc591xx.c
index 0929f1275814..a8cc49752cd5 100644
--- a/drivers/leds/leds-tlc591xx.c
+++ b/drivers/leds/leds-tlc591xx.c
@@ -214,6 +214,7 @@ tlc591xx_probe(struct i2c_client *client,
 		err = devm_led_classdev_register_ext(dev, &led->ldev,
 						     &init_data);
 		if (err < 0) {
+			of_node_put(child);
 			if (err != -EPROBE_DEFER)
 				dev_err(dev, "couldn't register LED %s\n",
 					led->ldev.name);
-- 
2.20.1