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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2022-05-15 17:59:23 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-06-11 14:35:27 +0100 |
| commit | 8f760ce7affd55c3058ac40cb1ba4346514cf602 (patch) | |
| tree | 4fb805108a89e793c3f48f5fe8b038f2beab3ea4 /drivers/iio/adc/ti-ads1015.c | |
| parent | ffa952e95d8c56cd1e06bc21e3b0baf8d212fef8 (diff) | |
| download | lwn-8f760ce7affd55c3058ac40cb1ba4346514cf602.tar.gz lwn-8f760ce7affd55c3058ac40cb1ba4346514cf602.zip | |
iio:adc:ti-ads1015: Improve error reporting for problems during .remove()
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>
Diffstat (limited to 'drivers/iio/adc/ti-ads1015.c')
| -rw-r--r-- | drivers/iio/adc/ti-ads1015.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/iio/adc/ti-ads1015.c b/drivers/iio/adc/ti-ads1015.c index 5544da80b636..e3dfc155fbe2 100644 --- a/drivers/iio/adc/ti-ads1015.c +++ b/drivers/iio/adc/ti-ads1015.c @@ -1098,6 +1098,7 @@ static int ads1015_remove(struct i2c_client *client) { struct iio_dev *indio_dev = i2c_get_clientdata(client); struct ads1015_data *data = iio_priv(indio_dev); + int ret; iio_device_unregister(indio_dev); @@ -1105,7 +1106,12 @@ static int ads1015_remove(struct i2c_client *client) 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 |