From 7e2dcc69824288916b55f90cd6db4992a0d95374 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 14 Dec 2012 07:55:00 +0000 Subject: [PATCH] iio: dac: ad5791: Don't set error code to [pos|neg]_voltage_uv regulator_get_voltage() may return negative error code. Don't set error code to to pos_voltage_uv and neg_voltage_uv. Signed-off-by: Axel Lin Acked-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron --- drivers/iio/dac/ad5791.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/iio/dac/ad5791.c b/drivers/iio/dac/ad5791.c index 2bd2e37280ff..6efe83e32ac6 100644 --- a/drivers/iio/dac/ad5791.c +++ b/drivers/iio/dac/ad5791.c @@ -365,7 +365,11 @@ static int __devinit ad5791_probe(struct spi_device *spi) if (ret) goto error_put_reg_pos; - pos_voltage_uv = regulator_get_voltage(st->reg_vdd); + ret = regulator_get_voltage(st->reg_vdd); + if (ret < 0) + goto error_disable_reg_pos; + + pos_voltage_uv = ret; } st->reg_vss = regulator_get(&spi->dev, "vss"); @@ -374,7 +378,11 @@ static int __devinit ad5791_probe(struct spi_device *spi) if (ret) goto error_put_reg_neg; - neg_voltage_uv = regulator_get_voltage(st->reg_vss); + ret = regulator_get_voltage(st->reg_vss); + if (ret < 0) + goto error_disable_reg_neg; + + neg_voltage_uv = ret; } st->pwr_down = true; @@ -428,6 +436,7 @@ error_put_reg_neg: if (!IS_ERR(st->reg_vss)) regulator_put(st->reg_vss); +error_disable_reg_pos: if (!IS_ERR(st->reg_vdd)) regulator_disable(st->reg_vdd); error_put_reg_pos: -- 2.30.2