Re: [PATCH 07/10] iio: adis16480: Use Managed device functions

[Jonathan Cameron <Jonathan.Cameron@Huawei.com>]

On Tue, 15 Sep 2020 11:33:42 +0200
Nuno Sá <nuno.sa@analog.com> wrote:

> Use the adis managed device functions to setup the buffer and the trigger.
> The ultimate goal will be to completely drop the non devm version from
> the lib.
> 
> Signed-off-by: Nuno Sá <nuno.sa@analog.com>
> ---
>  drivers/iio/imu/adis16480.c | 7 ++-----
>  1 file changed, 2 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/iio/imu/adis16480.c b/drivers/iio/imu/adis16480.c
> index 1eb4f98076f1..b6a129a70d4b 100644
> --- a/drivers/iio/imu/adis16480.c
> +++ b/drivers/iio/imu/adis16480.c
> @@ -1264,20 +1264,18 @@ static int adis16480_probe(struct spi_device *spi)
>  		st->clk_freq = st->chip_info->int_clk;
>  	}
>  
> -	ret = adis_setup_buffer_and_trigger(&st->adis, indio_dev, NULL);
> +	ret = devm_adis_setup_buffer_and_trigger(&st->adis, indio_dev, NULL);
>  	if (ret)
>  		goto error_clk_disable_unprepare;
>  
>  	ret = iio_device_register(indio_dev);
>  	if (ret)
> -		goto error_cleanup_buffer;
> +		goto error_clk_disable_unprepare;
>  
>  	adis16480_debugfs_init(indio_dev);
>  
>  	return 0;
>  
> -error_cleanup_buffer:
> -	adis_cleanup_buffer_and_trigger(&st->adis, indio_dev);
>  error_clk_disable_unprepare:
>  	clk_disable_unprepare(st->ext_clk);
>  error_stop_device:
> @@ -1293,7 +1291,6 @@ static int adis16480_remove(struct spi_device *spi)
>  	iio_device_unregister(indio_dev);
>  	adis16480_stop_device(indio_dev);
>  
> -	adis_cleanup_buffer_and_trigger(&st->adis, indio_dev);
This change the remove order so that it will not be a reverse of the order
seen in probe.   Perhaps you can solve that by using
devm_add_action_or_reset() calls to handle the few other remaining things
in remove?

Thanks,

Jonathan

>  	clk_disable_unprepare(st->ext_clk);
>  
>  	return 0;