linux-kernel - Re: [PATCH v2 01/15] iio: light: ltr390: simplify code in write_event

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Message-ID: <20241101153240.26c6c5ea@jic23-huawei>
Date: Fri, 1 Nov 2024 15:32:40 +0000
From: Jonathan Cameron <jic23@...nel.org>
To: Julien Stephan <jstephan@...libre.com>
Cc: Mudit Sharma <muditsharma.info@...il.com>, Lars-Peter Clausen
 <lars@...afoo.de>, Anshul Dalal <anshulusr@...il.com>, Javier Carrasco
 <javier.carrasco.cruz@...il.com>, Jean-Baptiste Maneyrol
 <jean-baptiste.maneyrol@....com>, Michael Hennerich
 <Michael.Hennerich@...log.com>, Cosmin Tanislav
 <cosmin.tanislav@...log.com>, Ramona Gradinariu
 <ramona.gradinariu@...log.com>, Antoniu Miclaus
 <antoniu.miclaus@...log.com>, Dan Robertson <dan@...obertson.com>, Marcelo
 Schmitt <marcelo.schmitt@...log.com>, Matteo Martelli
 <matteomartelli3@...il.com>, Anand Ashok Dumbre
 <anand.ashok.dumbre@...inx.com>, Michal Simek <michal.simek@....com>,
 Mariel Tinaco <Mariel.Tinaco@...log.com>, Jagath Jog J
 <jagathjog1996@...il.com>, Lorenzo Bianconi <lorenzo@...nel.org>, Subhajit
 Ghosh <subhajit.ghosh@...aklogic.com>, Kevin Tsai <ktsai@...ellamicro.com>,
 Linus Walleij <linus.walleij@...aro.org>, Benson Leung
 <bleung@...omium.org>, Guenter Roeck <groeck@...omium.org>,
 linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, chrome-platform@...ts.linux.dev
Subject: Re: [PATCH v2 01/15] iio: light: ltr390: simplify code in
 write_event_config callback

On Thu, 31 Oct 2024 16:26:56 +0100
Julien Stephan <jstephan@...libre.com> wrote:

> iio_ev_state_store is actually using kstrtobool to check user
> input, then gives the converted boolean value to the write_event_config
> callback.
> 
> Remove useless code in write_event_config callback.
> 
> Signed-off-by: Julien Stephan <jstephan@...libre.com>
Given these are good cleanup even without the final patches I'm going to
pick them up as I go. Maybe I'll end up taking the lot though!

Applied this one.

Thanks

Jonathan

> ---
>  drivers/iio/light/ltr390.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/drivers/iio/light/ltr390.c b/drivers/iio/light/ltr390.c
> index 8e0a3fc3d923a6f65d2a629c87e7bfd35d82a507..3bdffb6360bcbaab4df1a2d39c8ea3813b5d6bd3 100644
> --- a/drivers/iio/light/ltr390.c
> +++ b/drivers/iio/light/ltr390.c
> @@ -558,10 +558,7 @@ static int ltr390_write_event_config(struct iio_dev *indio_dev,
>  	struct ltr390_data *data = iio_priv(indio_dev);
>  	int ret;
>  
> -	if (state != 1  && state != 0)
> -		return -EINVAL;
> -
> -	if (state == 0)
> +	if (!state)
>  		return regmap_clear_bits(data->regmap, LTR390_INT_CFG, LTR390_LS_INT_EN);
>  
>  	guard(mutex)(&data->lock);
>