[PATCH v2] leds: tlc591xx: fix leak of device node iterator

[Tobias Jordan <kernel@cdqe.de>]

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@cdqe.de>
---
v2: rebased to Pavel's for-next branch

 drivers/leds/leds-tlc591xx.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/leds/leds-tlc591xx.c b/drivers/leds/leds-tlc591xx.c
index f24271337bd8..5b9dfdf743ec 100644
--- a/drivers/leds/leds-tlc591xx.c
+++ b/drivers/leds/leds-tlc591xx.c
@@ -205,10 +205,12 @@ tlc591xx_probe(struct i2c_client *client,
 		led->ldev.max_brightness = TLC591XX_MAX_BRIGHTNESS;
 		err = devm_led_classdev_register_ext(dev, &led->ldev,
 						     &init_data);
-		if (err < 0)
+		if (err < 0) {
+			of_node_put(child);
 			return dev_err_probe(dev, err,
 					     "couldn't register LED %s\n",
 					     led->ldev.name);
+		}
 	}
 	return 0;
 }
-- 
2.20.1