linux-kernel - Re: [PATCH] iio: sca3000: Fix missing return in switch

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Date:   Sun, 8 Jul 2018 12:05:30 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Cc:     Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iio: sca3000: Fix missing return in switch

On Sat, 7 Jul 2018 12:44:01 -0500
"Gustavo A. R. Silva" <gustavo@...eddedor.com> wrote:

> The IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY case is missing a
> return and will fall through to the default case and errorenously
> return -EINVAL.
> 
> Fix this by adding in missing *return ret*.
> 
> Fixes: 626f971b5b07 ("staging:iio:accel:sca3000 Add write support to the low pass filter control")
> Reported-by: Jonathan Cameron <jic23@...nel.org>
> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>

Thanks, Applied to the fixes-togreg branch of iio.git, marked for stable.

Jonathan
> ---
>  drivers/iio/accel/sca3000.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/iio/accel/sca3000.c b/drivers/iio/accel/sca3000.c
> index 4dceb75..4964561 100644
> --- a/drivers/iio/accel/sca3000.c
> +++ b/drivers/iio/accel/sca3000.c
> @@ -797,6 +797,7 @@ static int sca3000_write_raw(struct iio_dev *indio_dev,
>  		mutex_lock(&st->lock);
>  		ret = sca3000_write_3db_freq(st, val);
>  		mutex_unlock(&st->lock);
> +		return ret;
>  	default:
>  		return -EINVAL;
>  	}