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

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On Sat, 26 Sep 2020 02:51:17 +0200
Tobias Jordan <kernel@xxxxxxx> wrote:

> 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@xxxxxxx>
> ---
> 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;
>  }

Reviewed-by: Marek Behún <kabel@xxxxxxxxxx>




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