Re: [PATCH] iio: adc: stm32-adc: Fix of_node_put() issue in stm32-adc

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On 10/21/21 1:24 PM, Wan Jiabing wrote:
> Fix following coccicheck warning:
> ./drivers/iio/adc/stm32-adc.c:2014:1-33: WARNING: Function
> for_each_available_child_of_node should have of_node_put() before return.
> 
> Early exits from for_each_available_child_of_node should decrement the
> node reference counter. Replce return by goto here.

Hi Wan,

typo: Replace

I guess there's no need for a Fixes tag. (I'm pretty sure Jonathan will
advise on this if needed).

> 
> Signed-off-by: Wan Jiabing <wanjiabing@xxxxxxxx>

Apart from that, you can add my:
Reviewed-by: Fabrice Gasnier <fabrice.gasnier@xxxxxxxxxxx>

Thanks for the fix,
Best Regards,
Fabrice

> ---
>  drivers/iio/adc/stm32-adc.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c
> index 6245434f8377..7f1fb36c747c 100644
> --- a/drivers/iio/adc/stm32-adc.c
> +++ b/drivers/iio/adc/stm32-adc.c
> @@ -2024,7 +2024,8 @@ static int stm32_adc_generic_chan_init(struct iio_dev *indio_dev,
>  			if (strlen(name) >= STM32_ADC_CH_SZ) {
>  				dev_err(&indio_dev->dev, "Label %s exceeds %d characters\n",
>  					name, STM32_ADC_CH_SZ);
> -				return -EINVAL;
> +				ret = -EINVAL;
> +				goto err;
>  			}
>  			strncpy(adc->chan_name[val], name, STM32_ADC_CH_SZ);
>  			ret = stm32_adc_populate_int_ch(indio_dev, name, val);
> 



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