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iio:st_sensors: fix power regulator usage

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Ensure failure to enable power regulators is properly handled.

Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Gregor Boirie
2016-04-19 11:18:40 +02:00
committed by Jonathan Cameron
parent 169a88c1ee
commit 14f295c846
6 changed files with 57 additions and 22 deletions
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12
drivers/iio/magnetometer/st_magn_core.c
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@@ -588,13 +588,15 @@ int st_magn_common_probe(struct iio_dev *indio_dev)
indio_dev->info = &magn_info;
mutex_init(&mdata->tb.buf_lock);
st_sensors_power_enable(indio_dev);
err = st_sensors_power_enable(indio_dev);
if (err)
return err;
err = st_sensors_check_device_support(indio_dev,
ARRAY_SIZE(st_magn_sensors_settings),
st_magn_sensors_settings);
if (err < 0)
return err;
goto st_magn_power_off;
mdata->num_data_channels = ST_MAGN_NUMBER_DATA_CHANNELS;
mdata->multiread_bit = mdata->sensor_settings->multi_read_bit;
@@ -607,11 +609,11 @@ int st_magn_common_probe(struct iio_dev *indio_dev)
err = st_sensors_init_sensor(indio_dev, NULL);
if (err < 0)
return err;
goto st_magn_power_off;
err = st_magn_allocate_ring(indio_dev);
if (err < 0)
return err;
goto st_magn_power_off;
if (irq > 0) {
err = st_sensors_allocate_trigger(indio_dev,
@@ -634,6 +636,8 @@ st_magn_device_register_error:
st_sensors_deallocate_trigger(indio_dev);
st_magn_probe_trigger_error:
st_magn_deallocate_ring(indio_dev);
st_magn_power_off:
st_sensors_power_disable(indio_dev);
return err;
}