Re: [PATCH] iio: sca3000: Mark expected switch fall-through

From: Jonathan Cameron
Date: Sat Jul 07 2018 - 13:03:29 EST


On Tue, 3 Jul 2018 14:39:34 -0500
"Gustavo A. R. Silva" <gustavo@xxxxxxxxxxxxxx> wrote:

> In preparation to enabling -Wimplicit-fallthrough, mark switch cases
> where we are expecting to fall through.
>
> Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>

Looks like a bug to me not an unmarked fall through.

Should be return ret;

Do you want to do the patch?

Thanks,

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..209b52a 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);
> + /* fall through */
> default:
> return -EINVAL;
> }