iio: adc: twl4030: Return an error if we can not enable the vusb3v1 regulator in...

If we can not enable the regulator, go through the error handling path
instead of silently continuing.

Fixes: 7cc97d77ee8a ("iio: adc: twl4030: Fix ADC[3:6] readings")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/twl4030-madc.c b/drivers/iio/adc/twl4030-madc.c
index 0c86fbb3033e42f8381cfc3ef760f087b7eef3f0..28df096e84ec83e725729236d4dd9aa50aea90c4 100644 (file)
--- a/drivers/iio/adc/twl4030-madc.c
+++ b/drivers/iio/adc/twl4030-madc.c
@@ -893,8 +893,10 @@ static int twl4030_madc_probe(struct platform_device *pdev)
        }
 
        ret = regulator_enable(madc->usb3v1);
-       if (ret)
+       if (ret) {
                dev_err(madc->dev, "could not enable 3v1 bias regulator\n");
+               goto err_i2c;
+       }
 
        ret = iio_device_register(iio_dev);
        if (ret) {