Returning an error value in an i2c remove callback results in a generic
error message being emitted by the i2c core, but otherwise it doesn't
make a difference. The device goes away anyhow and the devm cleanups are
called.
So instead of triggering the generic i2c error message, emit a more
helpful message if a problem occurs and return 0 to suppress the generic
message.
This patch is a preparation for making i2c remove callbacks return void.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20220515155929.338656-3-u.kleine-koenig@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
{
struct iio_dev *indio_dev = i2c_get_clientdata(client);
struct ads1015_data *data = iio_priv(indio_dev);
+ int ret;
iio_device_unregister(indio_dev);
pm_runtime_set_suspended(&client->dev);
/* power down single shot mode */
- return ads1015_set_conv_mode(data, ADS1015_SINGLESHOT);
+ ret = ads1015_set_conv_mode(data, ADS1015_SINGLESHOT);
+ if (ret)
+ dev_warn(&client->dev, "Failed to power down (%pe)\n",
+ ERR_PTR(ret));
+
+ return 0;
}
#ifdef CONFIG_PM