linux-kernel - Re: [PATCH] iio: imu: bmi323: Fix trigger notification in case of error

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Message-ID: <20240511150247.07a06f6a@jic23-huawei>
Date: Sat, 11 May 2024 15:02:47 +0100
From: Jonathan Cameron <jic23@...nel.org>
To: Vasileios Amoiridis <vassilisamir@...il.com>
Cc: lars@...afoo.de, jagathjog1996@...il.com, linux-iio@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iio: imu: bmi323: Fix trigger notification in case of
 error

On Wed,  8 May 2024 17:54:07 +0200
Vasileios Amoiridis <vassilisamir@...il.com> wrote:

> In case of error in the bmi323_trigger_handler() function, the
> function exits without calling the iio_trigger_notify_done()
> which is responsible for informing the attached trigger that
> the process is done and in case there is a .reenable(), to
> call it.
> 
> Fixes: 8a636db3aa57 ("iio: imu: Add driver for BMI323 IMU")
> Signed-off-by: Vasileios Amoiridis <vassilisamir@...il.com>
I've applied this to a temporary fixes-for-6.10-rc1 that will get rebased
on top of an update char-misc-linus once the Linus picks up a pull request
from Greg during the coming merge window.

I've done this for other patches that may be dependent on stuff that is
only in char-misc-next.

Jonathan


> ---
>  drivers/iio/imu/bmi323/bmi323_core.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/iio/imu/bmi323/bmi323_core.c b/drivers/iio/imu/bmi323/bmi323_core.c
> index 5d42ab9b176a..67d74a1a1b26 100644
> --- a/drivers/iio/imu/bmi323/bmi323_core.c
> +++ b/drivers/iio/imu/bmi323/bmi323_core.c
> @@ -1391,7 +1391,7 @@ static irqreturn_t bmi323_trigger_handler(int irq, void *p)
>  				       &data->buffer.channels,
>  				       ARRAY_SIZE(data->buffer.channels));
>  		if (ret)
> -			return IRQ_NONE;
> +			goto out;
>  	} else {
>  		for_each_set_bit(bit, indio_dev->active_scan_mask,
>  				 BMI323_CHAN_MAX) {
> @@ -1400,13 +1400,14 @@ static irqreturn_t bmi323_trigger_handler(int irq, void *p)
>  					      &data->buffer.channels[index++],
>  					      BMI323_BYTES_PER_SAMPLE);
>  			if (ret)
> -				return IRQ_NONE;
> +				goto out;
>  		}
>  	}
>  
>  	iio_push_to_buffers_with_timestamp(indio_dev, &data->buffer,
>  					   iio_get_time_ns(indio_dev));
>  
> +out:
>  	iio_trigger_notify_done(indio_dev->trig);
>  
>  	return IRQ_HANDLED;
> 
> base-commit: dccb07f2914cdab2ac3a5b6c98406f765acab803