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Message-ID: <50CAF7E9.7000905@metafoo.de>
Date: Fri, 14 Dec 2012 10:56:57 +0100
From: Lars-Peter Clausen <lars@...afoo.de>
To: Axel Lin <axel.lin@...ics.com>
CC: Jonathan Cameron <jic23@....ac.uk>, linux-iio@...r.kernel.org,
linux-kernel@...r.kernel.org,
"Hennerich, Michael" <Michael.Hennerich@...log.com>
Subject: Re: [PATCH 1/6] iio: adc: ad7266: Don't set error code to st->vref_uv
On 12/14/2012 08:47 AM, Axel Lin wrote:
> regulator_get_voltage() may return negative error code.
> Add error checking to avoid setting error code to st->vref_uv.
>
> Signed-off-by: Axel Lin <axel.lin@...ics.com>
Thanks Axel, for the whole series:
Acked-by: Lars-Peter Clausen <lars@...afoo.de>
> ---
> drivers/iio/adc/ad7266.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c
> index a6f4fc5..e36107d 100644
> --- a/drivers/iio/adc/ad7266.c
> +++ b/drivers/iio/adc/ad7266.c
> @@ -411,7 +411,11 @@ static int __devinit ad7266_probe(struct spi_device *spi)
> if (ret)
> goto error_put_reg;
>
> - st->vref_uv = regulator_get_voltage(st->reg);
> + ret = regulator_get_voltage(st->reg);
> + if (ret < 0)
> + goto error_disable_reg;
> +
> + st->vref_uv = ret;
> } else {
> /* Use internal reference */
> st->vref_uv = 2500000;
--
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