From 4415381093fc54548f1a0dd3919abd7f5a72a4f2 Mon Sep 17 00:00:00 2001 From: Alexandru Ardelean Date: Sun, 26 Sep 2021 18:49:32 +0300 Subject: [PATCH] iio: adc: nau7802: convert probe to full device-managed This is a trivial conversion to device-managed functions. The mutex_destroy() calls are redundant, as the data will be free'd anyway. And the IRQ and IIO register functions both have device-managed equivalents. Signed-off-by: Alexandru Ardelean Reviewed-by: Alexandre Belloni Link: https://lore.kernel.org/r/20210926154932.3287590-1-aardelean@deviqon.com Signed-off-by: Jonathan Cameron --- drivers/iio/adc/nau7802.c | 50 +++++++-------------------------------- 1 file changed, 9 insertions(+), 41 deletions(-) diff --git a/drivers/iio/adc/nau7802.c b/drivers/iio/adc/nau7802.c index bb70b51d25b1..976c235f3079 100644 --- a/drivers/iio/adc/nau7802.c +++ b/drivers/iio/adc/nau7802.c @@ -428,8 +428,6 @@ static int nau7802_probe(struct i2c_client *client, st = iio_priv(indio_dev); - i2c_set_clientdata(client, indio_dev); - indio_dev->name = dev_name(&client->dev); indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &nau7802_info; @@ -495,13 +493,13 @@ static int nau7802_probe(struct i2c_client *client, * will enable them back when we will need them.. */ if (client->irq) { - ret = request_threaded_irq(client->irq, - NULL, - nau7802_eoc_trigger, - IRQF_TRIGGER_HIGH | IRQF_ONESHOT | - IRQF_NO_AUTOEN, - client->dev.driver->name, - indio_dev); + ret = devm_request_threaded_irq(&client->dev, client->irq, + NULL, + nau7802_eoc_trigger, + IRQF_TRIGGER_HIGH | IRQF_ONESHOT | + IRQF_NO_AUTOEN, + client->dev.driver->name, + indio_dev); if (ret) { /* * What may happen here is that our IRQ controller is @@ -526,7 +524,7 @@ static int nau7802_probe(struct i2c_client *client, ret = i2c_smbus_write_byte_data(st->client, NAU7802_REG_CTRL2, NAU7802_CTRL2_CRS(st->sample_rate)); if (ret) - goto error_free_irq; + return ret; } /* Setup the ADC channels available on the board */ @@ -536,36 +534,7 @@ static int nau7802_probe(struct i2c_client *client, mutex_init(&st->lock); mutex_init(&st->data_lock); - ret = iio_device_register(indio_dev); - if (ret < 0) { - dev_err(&client->dev, "Couldn't register the device.\n"); - goto error_device_register; - } - - return 0; - -error_device_register: - mutex_destroy(&st->lock); - mutex_destroy(&st->data_lock); -error_free_irq: - if (client->irq) - free_irq(client->irq, indio_dev); - - return ret; -} - -static int nau7802_remove(struct i2c_client *client) -{ - struct iio_dev *indio_dev = i2c_get_clientdata(client); - struct nau7802_state *st = iio_priv(indio_dev); - - iio_device_unregister(indio_dev); - mutex_destroy(&st->lock); - mutex_destroy(&st->data_lock); - if (client->irq) - free_irq(client->irq, indio_dev); - - return 0; + return devm_iio_device_register(&client->dev, indio_dev); } static const struct i2c_device_id nau7802_i2c_id[] = { @@ -582,7 +551,6 @@ MODULE_DEVICE_TABLE(of, nau7802_dt_ids); static struct i2c_driver nau7802_driver = { .probe = nau7802_probe, - .remove = nau7802_remove, .id_table = nau7802_i2c_id, .driver = { .name = "nau7802",