From 9ecc2ebbb6360101fed75baa0cc7c80769d00b56 Mon Sep 17 00:00:00 2001 From: Jonathan Cameron Date: Sun, 16 May 2021 18:25:19 +0100 Subject: iio: adc: ti-adc108s102: Use devm managed functions for all of probe() Simplifies error handling and lets us drop remove() entirely. Signed-off-by: Jonathan Cameron Cc: Bogdan Pricop Reviewed-by: Alexandru Ardelean Link: https://lore.kernel.org/r/20210516172520.1398835-8-jic23@kernel.org --- drivers/iio/adc/ti-adc108s102.c | 45 ++++++++++++++--------------------------- 1 file changed, 15 insertions(+), 30 deletions(-) diff --git a/drivers/iio/adc/ti-adc108s102.c b/drivers/iio/adc/ti-adc108s102.c index 183b2245e89b..db902aef2abe 100644 --- a/drivers/iio/adc/ti-adc108s102.c +++ b/drivers/iio/adc/ti-adc108s102.c @@ -215,6 +215,11 @@ static const struct iio_info adc108s102_info = { .update_scan_mode = &adc108s102_update_scan_mode, }; +static void adc108s102_reg_disable(void *reg) +{ + regulator_disable(reg); +} + static int adc108s102_probe(struct spi_device *spi) { struct adc108s102_state *st; @@ -239,6 +244,10 @@ static int adc108s102_probe(struct spi_device *spi) dev_err(&spi->dev, "Cannot enable vref regulator\n"); return ret; } + ret = devm_add_action_or_reset(&spi->dev, adc108s102_reg_disable, + st->reg); + if (ret) + return ret; ret = regulator_get_voltage(st->reg); if (ret < 0) { @@ -249,7 +258,6 @@ static int adc108s102_probe(struct spi_device *spi) st->va_millivolt = ret / 1000; } - spi_set_drvdata(spi, indio_dev); st->spi = spi; indio_dev->name = spi->modalias; @@ -266,40 +274,18 @@ static int adc108s102_probe(struct spi_device *spi) spi_message_init_with_transfers(&st->scan_single_msg, &st->scan_single_xfer, 1); - ret = iio_triggered_buffer_setup(indio_dev, NULL, - &adc108s102_trigger_handler, NULL); + ret = devm_iio_triggered_buffer_setup(&spi->dev, indio_dev, NULL, + &adc108s102_trigger_handler, + NULL); if (ret) - goto error_disable_reg; + return ret; - ret = iio_device_register(indio_dev); - if (ret) { + ret = devm_iio_device_register(&spi->dev, indio_dev); + if (ret) dev_err(&spi->dev, "Failed to register IIO device\n"); - goto error_cleanup_triggered_buffer; - } - return 0; - -error_cleanup_triggered_buffer: - iio_triggered_buffer_cleanup(indio_dev); - -error_disable_reg: - regulator_disable(st->reg); - return ret; } -static int adc108s102_remove(struct spi_device *spi) -{ - struct iio_dev *indio_dev = spi_get_drvdata(spi); - struct adc108s102_state *st = iio_priv(indio_dev); - - iio_device_unregister(indio_dev); - iio_triggered_buffer_cleanup(indio_dev); - - regulator_disable(st->reg); - - return 0; -} - static const struct of_device_id adc108s102_of_match[] = { { .compatible = "ti,adc108s102" }, { } @@ -327,7 +313,6 @@ static struct spi_driver adc108s102_driver = { .acpi_match_table = ACPI_PTR(adc108s102_acpi_ids), }, .probe = adc108s102_probe, - .remove = adc108s102_remove, .id_table = adc108s102_id, }; module_spi_driver(adc108s102_driver); -- cgit v1.2.3