Re: [PATCH v2 1/4] iio:accel: preenable/postenable/predisable fixup for ST accel buffer

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, 2019-07-31 at 14:48 -0700, Denis Ciocca wrote:
> [External]
> 
> This patch is trying to cleanup for good the buffers operation functions.
> There is no need of using preenable, all can be done into
> postenable.
> Let's also rename the goto label using operation to perform and not
> where it fails.
> 

Reviewed-by: Alexandru Ardelean <alexandru.ardelean@xxxxxxxxxx>

> Signed-off-by: Denis Ciocca <denis.ciocca@xxxxxx>
> ---
>  drivers/iio/accel/st_accel_buffer.c | 45 +++++++++++++----------------
>  1 file changed, 20 insertions(+), 25 deletions(-)
> 
> diff --git a/drivers/iio/accel/st_accel_buffer.c b/drivers/iio/accel/st_accel_buffer.c
> index 05f9aea431e2..59dcef02ec19 100644
> --- a/drivers/iio/accel/st_accel_buffer.c
> +++ b/drivers/iio/accel/st_accel_buffer.c
> @@ -29,56 +29,52 @@ int st_accel_trig_set_state(struct iio_trigger *trig, bool state)
>  	return st_sensors_set_dataready_irq(indio_dev, state);
>  }
>  
> -static int st_accel_buffer_preenable(struct iio_dev *indio_dev)
> -{
> -	return st_sensors_set_enable(indio_dev, true);
> -}
> -
>  static int st_accel_buffer_postenable(struct iio_dev *indio_dev)
>  {
> -	int err;
>  	struct st_sensor_data *adata = iio_priv(indio_dev);
> +	int err;
>  
>  	adata->buffer_data = kmalloc(indio_dev->scan_bytes,
>  				     GFP_DMA | GFP_KERNEL);
> -	if (adata->buffer_data == NULL) {
> -		err = -ENOMEM;
> -		goto allocate_memory_error;
> -	}
> +	if (!adata->buffer_data)
> +		return -ENOMEM;
>  
>  	err = iio_triggered_buffer_postenable(indio_dev);
>  	if (err < 0)
> -		goto st_accel_buffer_postenable_error;
> +		goto st_accel_free_buffer;
>  
>  	err = st_sensors_set_axis_enable(indio_dev,
> -					(u8)indio_dev->active_scan_mask[0]);
> +					 (u8)indio_dev->active_scan_mask[0]);
>  	if (err < 0)
> -		goto st_sensors_set_axis_enable_error;
> +		goto st_accel_buffer_predisable;
>  
> -	return err;
> +	err = st_sensors_set_enable(indio_dev, true);
> +	if (err < 0)
> +		goto st_accel_buffer_enable_all_axis;
> +
> +	return 0;
>  
> -st_sensors_set_axis_enable_error:
> +st_accel_buffer_enable_all_axis:
> +	st_sensors_set_axis_enable(indio_dev, ST_SENSORS_ENABLE_ALL_AXIS);
> +st_accel_buffer_predisable:
>  	iio_triggered_buffer_predisable(indio_dev);
> -st_accel_buffer_postenable_error:
> +st_accel_free_buffer:
>  	kfree(adata->buffer_data);
> -allocate_memory_error:
>  	return err;
>  }
>  
>  static int st_accel_buffer_predisable(struct iio_dev *indio_dev)
>  {
> -	int err, err2;
>  	struct st_sensor_data *adata = iio_priv(indio_dev);
> -
> -	err = st_sensors_set_axis_enable(indio_dev, ST_SENSORS_ENABLE_ALL_AXIS);
> -	if (err < 0)
> -		goto st_accel_buffer_predisable_error;
> +	int err, err2;
>  
>  	err = st_sensors_set_enable(indio_dev, false);
>  	if (err < 0)
> -		goto st_accel_buffer_predisable_error;
> +		goto st_accel_buffer_predisable;
> +
> +	err = st_sensors_set_axis_enable(indio_dev, ST_SENSORS_ENABLE_ALL_AXIS);
>  
> -st_accel_buffer_predisable_error:
> +st_accel_buffer_predisable:
>  	err2 = iio_triggered_buffer_predisable(indio_dev);
>  	if (!err)
>  		err = err2;
> @@ -88,7 +84,6 @@ static int st_accel_buffer_predisable(struct iio_dev *indio_dev)
>  }
>  
>  static const struct iio_buffer_setup_ops st_accel_buffer_setup_ops = {
> -	.preenable = &st_accel_buffer_preenable,
>  	.postenable = &st_accel_buffer_postenable,
>  	.predisable = &st_accel_buffer_predisable,
>  };




[Index of Archives]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Input]     [Linux Kernel]     [Linux SCSI]     [X.org]

  Powered by Linux