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iio: adc: ti-adc081c: Use devm managed functions for all of probe()

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Simplifies error handling and allows us to drop remove() entirely.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alexandru Ardelean <aardelean@deviqon.com>
Link: https://lore.kernel.org/r/20210516172520.1398835-6-jic23@kernel.org
This commit is contained in:
Jonathan Cameron 2021-05-16 18:25:17 +01:00
parent 3c43b6e108
commit 6c100eb960
1 changed files with 14 additions and 29 deletions
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43
drivers/iio/adc/ti-adc081c.c
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@ -146,6 +146,11 @@ static irqreturn_t adc081c_trigger_handler(int irq, void *p)
return IRQ_HANDLED;
}
static void adc081c_reg_disable(void *reg)
{
regulator_disable(reg);
}
static int adc081c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@ -175,6 +180,11 @@ static int adc081c_probe(struct i2c_client *client,
if (err < 0)
return err;
err = devm_add_action_or_reset(&client->dev, adc081c_reg_disable,
adc->ref);
if (err)
return err;
iio->name = dev_name(&client->dev);
iio->modes = INDIO_DIRECT_MODE;
iio->info = &adc081c_info;
@ -182,38 +192,14 @@ static int adc081c_probe(struct i2c_client *client,
iio->channels = model->channels;
iio->num_channels = ADC081C_NUM_CHANNELS;
err = iio_triggered_buffer_setup(iio, NULL, adc081c_trigger_handler, NULL);
err = devm_iio_triggered_buffer_setup(&client->dev, iio, NULL,
adc081c_trigger_handler, NULL);
if (err < 0) {
dev_err(&client->dev, "iio triggered buffer setup failed\n");
goto err_regulator_disable;
return err;
}
err = iio_device_register(iio);
if (err < 0)
goto err_buffer_cleanup;
i2c_set_clientdata(client, iio);
return 0;
err_buffer_cleanup:
iio_triggered_buffer_cleanup(iio);
err_regulator_disable:
regulator_disable(adc->ref);
return err;
}
static int adc081c_remove(struct i2c_client *client)
{
struct iio_dev *iio = i2c_get_clientdata(client);
struct adc081c *adc = iio_priv(iio);
iio_device_unregister(iio);
iio_triggered_buffer_cleanup(iio);
regulator_disable(adc->ref);
return 0;
return devm_iio_device_register(&client->dev, iio);
}
static const struct i2c_device_id adc081c_id[] = {
@ -238,7 +224,6 @@ static struct i2c_driver adc081c_driver = {
.of_match_table = adc081c_of_match,
},
.probe = adc081c_probe,
.remove = adc081c_remove,
.id_table = adc081c_id,
};
module_i2c_driver(adc081c_driver);