[PATCH 2/5] iio: adc: intel_mrfld_adc: convert probe to full device-managed

Alexandru Ardelean
2021-09-03T07:29:36Z

The only call in the remove hook is the iio_map_array_unregister() call.
Since we have a devm_iio_map_array_register() function now, we can use that
and remove the remove hook entirely.
The IIO device was registered with the devm_iio_device_register() prior to
this change.

Also, the platform_set_drvdata() can be removed now, since it was used only
in the remove hook.

Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
---
drivers/iio/adc/intel_mrfld_adc.c | 24 ++----------------------
1 file changed, 2 insertions(+), 22 deletions(-)

diff --git a/drivers/iio/adc/intel_mrfld_adc.c b/drivers/iio/adc/intel_mrfld_adc.c
index 75394350eb4c..616de0c3a049 100644
--- a/drivers/iio/adc/intel_mrfld_adc.c
+++ b/drivers/iio/adc/intel_mrfld_adc.c
@@ -205,8 +205,6 @@ static int mrfld_adc_probe(struct platform_device *pdev)
if (ret)
return ret;

- platform_set_drvdata(pdev, indio_dev);
-
indio_dev->name = pdev->name;

indio_dev->channels = mrfld_adc_channels;
@@ -214,28 +212,11 @@ static int mrfld_adc_probe(struct platform_device *pdev)
indio_dev->info = &mrfld_adc_iio_info;
indio_dev->modes = INDIO_DIRECT_MODE;

- ret = iio_map_array_register(indio_dev, iio_maps);
+ ret = devm_iio_map_array_register(dev, indio_dev, iio_maps);
if (ret)
return ret;

- ret = devm_iio_device_register(dev, indio_dev);
- if (ret < 0)
- goto err_array_unregister;
-
- return 0;
-
-err_array_unregister:
- iio_map_array_unregister(indio_dev);
- return ret;
-}
-
-static int mrfld_adc_remove(struct platform_device *pdev)
-{
- struct iio_dev *indio_dev = platform_get_drvdata(pdev);
-
- iio_map_array_unregister(indio_dev);
-
- return 0;
+ return devm_iio_device_register(dev, indio_dev);
}

static const struct platform_device_id mrfld_adc_id_table[] = {
@@ -249,7 +230,6 @@ static struct platform_driver mrfld_adc_driver = {
.name = "mrfld_bcove_adc",
},
.probe = mrfld_adc_probe,
- .remove = mrfld_adc_remove,
.id_table = mrfld_adc_id_table,
};
module_platform_driver(mrfld_adc_driver);
--
2.31.1