Re: [PATCH v2] iio: adc: rockchip_saradc: fix missing clk_disable_unprepare() on error in rockchip_saradc_resume

[Robin Murphy]

On 2020-11-03 07:49, Qinglang Miao wrote:
> Fix the missing clk_disable_unprepare() of info->pclk
> before return from rockchip_saradc_resume in the error
> handling case when fails to prepare and enable info->clk.
>
> Fixes: 44d6f2ef94f9 ("iio: adc: add driver for Rockchip saradc")
> Signed-off-by: Qinglang Miao <miaoqinglang@xxxxxxxxxx>
> ---
>   drivers/iio/adc/rockchip_saradc.c | 5 +++--
>   1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c
> index 1f3d7d639..5eb566274 100644
> --- a/drivers/iio/adc/rockchip_saradc.c
> +++ b/drivers/iio/adc/rockchip_saradc.c
> @@ -461,9 +461,10 @@ static int rockchip_saradc_resume(struct device *dev)
>   		return ret;
>   
>   	ret = clk_prepare_enable(info->clk);
> -	if (ret)
> +	if (ret) {
> +		clk_disable_unprepare(info->pclk);
>   		return ret;

No need to add braces, just replace this utterly pointless "early" return ;)

Robin.

> -
> +	}
>   	return ret;
>   }
>   #endif