This patch makes the ad7192_probe fail in case
regulator_get_voltage will return an error or voltage
is set to 0.
Signed-off-by: Alexandru Tachici <alexandru.tachici@xxxxxxxxxx>
---
drivers/staging/iio/adc/ad7192.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index bf3e2a9cc07f..41da8b4cdc48 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -899,10 +899,13 @@ static int ad7192_probe(struct spi_device *spi)
voltage_uv = regulator_get_voltage(st->avdd);
- if (voltage_uv)
+ if (voltage_uv > 0) {
st->int_vref_mv = voltage_uv / 1000;
- else
+ } else {
+ ret = voltage_uv;
dev_err(&spi->dev, "Device tree error, reference voltage undefined\n");
+ goto error_disable_avdd;
+ }
spi_set_drvdata(spi, indio_dev);
st->devid = spi_get_device_id(spi)->driver_data;
--
2.20.1
