linux-kernel - Re: [PATCH] iio: trigger: Fix condition for own trigger

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Message-ID: <4cb8af25-078c-45be-a544-653e2e2c6947@gmail.com>
Date: Mon, 17 Jun 2024 09:13:53 +0300
From: Matti Vaittinen <mazziesaccount@...il.com>
To: João Paulo Gonçalves
 <jpaulo.silvagoncalves@...il.com>, Jonathan Cameron <jic23@...nel.org>,
 Lars-Peter Clausen <lars@...afoo.de>
Cc: João Paulo Gonçalves <joao.goncalves@...adex.com>,
 linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
 stable@...r.kernel.org
Subject: Re: [PATCH] iio: trigger: Fix condition for own trigger

On 6/14/24 17:36, João Paulo Gonçalves wrote:
> From: João Paulo Gonçalves <joao.goncalves@...adex.com>
> 
> The condition for checking if triggers belong to the same IIO device to
> set attached_own_device is currently inverted, causing
> iio_trigger_using_own() to return an incorrect value. Fix it by testing
> for the correct return value of iio_validate_own_trigger().
> 
> Cc: stable@...r.kernel.org
> Fixes: 517985ebc531 ("iio: trigger: Add simple trigger_validation helper")
> Signed-off-by: João Paulo Gonçalves <joao.goncalves@...adex.com>

Reviewed-by: Matti Vaittinen <mazziesaccount@...il.com>

Thanks for fixing this!

> ---
>   drivers/iio/industrialio-trigger.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
> index 16de57846bd9..2e84776f4fbd 100644
> --- a/drivers/iio/industrialio-trigger.c
> +++ b/drivers/iio/industrialio-trigger.c
> @@ -315,7 +315,7 @@ int iio_trigger_attach_poll_func(struct iio_trigger *trig,
>   	 * this is the case if the IIO device and the trigger device share the
>   	 * same parent device.
>   	 */
> -	if (iio_validate_own_trigger(pf->indio_dev, trig))
> +	if (!iio_validate_own_trigger(pf->indio_dev, trig))
>   		trig->attached_own_device = true;
> 
>   	return ret;
> --
> 2.34.1

-- 
Matti Vaittinen
Linux kernel developer at ROHM Semiconductors
Oulu Finland

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