linux-kernel - Re: [PATCH v8 1/8] iio: mb1232: relax return value check for IRQ get

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Date:   Tue, 1 Aug 2023 18:53:28 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Matti Vaittinen <mazziesaccount@...il.com>
Cc:     Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
        Andreas Klinger <ak@...klinger.de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v8 1/8] iio: mb1232: relax return value check for IRQ
 get

On Tue, 1 Aug 2023 15:02:10 +0300
Matti Vaittinen <mazziesaccount@...il.com> wrote:

> fwnode_irq_get() was changed to not return 0 anymore.
> 
> Drop check for return value 0.
> 
> Signed-off-by: Matti Vaittinen <mazziesaccount@...il.com>
> Acked-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
> Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>
> 
Applied fiddling above so I don't ack and sign off on it because
that confuses me :)

Applied to the togreg branch and pushed out as testing for all the
normal reasons.

Thanks,

Jonathan



> ---
> Revsion history:
> v5 =>:
> - No changes
> v4 => v5:
>  - drop unnecessary data->irqnr = -1 assignment
> 
> The patch changing the fwnode_irq_get() got merged during 5.4:
> https://lore.kernel.org/all/fb7241d3-d1d1-1c37-919b-488d6d007484@gmail.com/
> This is a clean-up as agreed.
> ---
>  drivers/iio/proximity/mb1232.c | 7 ++-----
>  1 file changed, 2 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/iio/proximity/mb1232.c b/drivers/iio/proximity/mb1232.c
> index fb1073c8d9f7..614e65cb9d42 100644
> --- a/drivers/iio/proximity/mb1232.c
> +++ b/drivers/iio/proximity/mb1232.c
> @@ -76,7 +76,7 @@ static s16 mb1232_read_distance(struct mb1232_data *data)
>  		goto error_unlock;
>  	}
>  
> -	if (data->irqnr >= 0) {
> +	if (data->irqnr > 0) {
>  		/* it cannot take more than 100 ms */
>  		ret = wait_for_completion_killable_timeout(&data->ranging,
>  									HZ/10);
> @@ -212,10 +212,7 @@ static int mb1232_probe(struct i2c_client *client)
>  	init_completion(&data->ranging);
>  
>  	data->irqnr = fwnode_irq_get(dev_fwnode(&client->dev), 0);
> -	if (data->irqnr <= 0) {
> -		/* usage of interrupt is optional */
> -		data->irqnr = -1;
> -	} else {
> +	if (data->irqnr > 0) {
>  		ret = devm_request_irq(dev, data->irqnr, mb1232_handle_irq,
>  				IRQF_TRIGGER_FALLING, id->name, indio_dev);
>  		if (ret < 0) {