iio: adc: ad799x: fix probe error handling

Since commit 0f7ddcc ("iio:adc:ad799x: Write default config on probe
and reset alert status on probe") the error path is wrong since it
leaves the vref regulator on. Fix this by disabling both regulators.

Fixes: 0f7ddcc ("iio:adc:ad799x: Write default config on probe and reset alert status on probe")
Signed-off-by: Marco Felsch <[email protected]>
Reviewed-by: Alexandru Ardelean <[email protected]>
Cc: <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

Author: Marco Felsch

drivers/iio/adc/ad799x.c

@@ -810,10 +810,10 @@ static int ad799x_probe(struct i2c_client *client,
 
 	ret = ad799x_write_config(st, st->chip_config->default_config);
 	if (ret < 0)
-		goto error_disable_reg;
+		goto error_disable_vref;
 	ret = ad799x_read_config(st);
 	if (ret < 0)
-		goto error_disable_reg;
+		goto error_disable_vref;
 	st->config = ret;
 
 	ret = iio_triggered_buffer_setup(indio_dev, NULL,