diff options
| author | Gregor Boirie <gregor.boirie@parrot.com> | 2016-04-19 11:18:40 +0200 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2016-05-29 17:08:10 +0200 |
| commit | 14f295c846063c4f1812b09427195cee522aa006 (patch) | |
| tree | f989193531eba3ddb8970a5450bf43bd8e638511 /drivers/iio/magnetometer | |
| parent | iio:st_sensors: emulate SMBus block read if needed (diff) | |
| download | linux-14f295c846063c4f1812b09427195cee522aa006.tar.xz linux-14f295c846063c4f1812b09427195cee522aa006.zip | |
iio:st_sensors: fix power regulator usage
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>
Diffstat (limited to 'drivers/iio/magnetometer')
| -rw-r--r-- | drivers/iio/magnetometer/st_magn_core.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c index 62036d2a9956..7c94adc3ff1d 100644 --- a/drivers/iio/magnetometer/st_magn_core.c +++ b/drivers/iio/magnetometer/st_magn_core.c @@ -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; } |