iio: adc: ad799x: fix probe error handling

BugLink: https://bugs.launchpad.net/bugs/1850541
commit c62dd44901cfff12acc5792bf3d2dec20bcaf392 upstream.

Since commit 0f7ddcc1bff1 ("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: 0f7ddcc1bff1 ("iio:adc:ad799x: Write default config on probe and reset alert status on probe")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

diff --git a/drivers/iio/adc/ad799x.c b/drivers/iio/adc/ad799x.c
index e1da67d5ee2204b6ad1e97281653cb3e89ffbc86..9e61720db7eaf17a8a97fe539d97e738449846cf 100644 (file)
--- a/drivers/iio/adc/ad799x.c
+++ b/drivers/iio/adc/ad799x.c
@@ -814,10 +814,10 @@ 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,