linux-kernel - Re: [PATCH v3 04/27] staging: iio: resolver: ad2s1210: check return of ad2s1210

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Message-ID: <20230930153736.52229088@jic23-huawei>
Date:   Sat, 30 Sep 2023 15:37:36 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     David Lechner <dlechner@...libre.com>
Cc:     linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-staging@...ts.linux.dev,
        David Lechner <david@...hnology.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Nuno Sá <nuno.sa@...log.com>,
        Axel Haslam <ahaslam@...libre.com>,
        Philip Molloy <pmolloy@...libre.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 04/27] staging: iio: resolver: ad2s1210: check return
 of ad2s1210_initial()

On Fri, 29 Sep 2023 12:23:09 -0500
David Lechner <dlechner@...libre.com> wrote:

> From: David Lechner <david@...hnology.com>
> 
> From: David Lechner <dlechner@...libre.com>
> 
> This adds a check to the return value of ad2s1210_initial() since it
> can fail. The call is also moved before devm_iio_device_register() so
> that we don't have to unregister the device if it fails.
> 
> Signed-off-by: David Lechner <dlechner@...libre.com>
Applied

> ---
> 
> v3 changes:
> * This is a new patch split out from "staging: iio: resolver: ad2s1210:
>  fix probe"
> 
>  drivers/staging/iio/resolver/ad2s1210.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
> index 8fde08887f7f..b5e071d7c5fd 100644
> --- a/drivers/staging/iio/resolver/ad2s1210.c
> +++ b/drivers/staging/iio/resolver/ad2s1210.c
> @@ -672,6 +672,10 @@ static int ad2s1210_probe(struct spi_device *spi)
>  	if (ret < 0)
>  		return ret;
>  
> +	ret = ad2s1210_initial(st);
> +	if (ret < 0)
> +		return ret;
> +
>  	indio_dev->info = &ad2s1210_info;
>  	indio_dev->modes = INDIO_DIRECT_MODE;
>  	indio_dev->channels = ad2s1210_channels;
> @@ -683,7 +687,6 @@ static int ad2s1210_probe(struct spi_device *spi)
>  		return ret;
>  
>  	st->fclkin = spi->max_speed_hz;
> -	ad2s1210_initial(st);
>  
>  	return 0;
>  }
>