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iio: adc: ti-adc0832: Use devm managed functions for all of probe() 

Simplifies error handling, plus allows us to drop the remove()
function entirely.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Reviewed-by: Alexandru Ardelean <aardelean@deviqon.com>
Link: https://lore.kernel.org/r/20210516172520.1398835-7-jic23@kernel.org
This commit is contained in:
Jonathan Cameron 2021-05-16 18:25:18 +01:00
parent 6c100eb960
commit 55364f73a6
1 changed files with 12 additions and 27 deletions
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39
drivers/iio/adc/ti-adc0832.c
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@ -236,6 +236,11 @@ out:
return IRQ_HANDLED;
}
static void adc0832_reg_disable(void *reg)
{
regulator_disable(reg);
}
static int adc0832_probe(struct spi_device *spi)
{
struct iio_dev *indio_dev;
@ -287,36 +292,17 @@ static int adc0832_probe(struct spi_device *spi)
if (ret)
return ret;
spi_set_drvdata(spi, indio_dev);
ret = iio_triggered_buffer_setup(indio_dev, NULL,
adc0832_trigger_handler, NULL);
ret = devm_add_action_or_reset(&spi->dev, adc0832_reg_disable,
adc->reg);
if (ret)
goto err_reg_disable;
return ret;
ret = iio_device_register(indio_dev);
ret = devm_iio_triggered_buffer_setup(&spi->dev, indio_dev, NULL,
adc0832_trigger_handler, NULL);
if (ret)
goto err_buffer_cleanup;
return ret;
return 0;
err_buffer_cleanup:
iio_triggered_buffer_cleanup(indio_dev);
err_reg_disable:
regulator_disable(adc->reg);
return ret;
}
static int adc0832_remove(struct spi_device *spi)
{
struct iio_dev *indio_dev = spi_get_drvdata(spi);
struct adc0832 *adc = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
iio_triggered_buffer_cleanup(indio_dev);
regulator_disable(adc->reg);
return 0;
return devm_iio_device_register(&spi->dev, indio_dev);
}
static const struct of_device_id adc0832_dt_ids[] = {
@ -343,7 +329,6 @@ static struct spi_driver adc0832_driver = {
.of_match_table = adc0832_dt_ids,
},
.probe = adc0832_probe,
.remove = adc0832_remove,
.id_table = adc0832_id,
};
module_spi_driver(adc0832_driver);