iio: dac: ad5686: Don't set error code to voltage_uv

regulator_get_voltage() may return negative error code.
Add error checking to avoid setting error code to voltage_uv.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Axel Lin 2012-12-14 12:08:00 +00:00 committed by Jonathan Cameron
parent 8434e78565
commit 359570ad3f

View File

@ -332,7 +332,11 @@ static int __devinit ad5686_probe(struct spi_device *spi)
if (ret)
goto error_put_reg;
voltage_uv = regulator_get_voltage(st->reg);
ret = regulator_get_voltage(st->reg);
if (ret < 0)
goto error_disable_reg;
voltage_uv = ret;
}
st->chip_info =