Re: [PATCH v2 3/6] iio: dac: ad5504: Don't set error code to voltage_uv
From: Jonathan Cameron
Date: Sun Dec 16 2012 - 06:09:41 EST
On 12/14/2012 12:06 PM, Axel Lin wrote:
> 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@xxxxxxxxxx>
Axel,
I would definitely have prefered a resend of the whole series rather than
just the ones you have fixed up.
I assumed Lars would have no objection to Acking these as well!
Anyhow 1,2,6 from v1 and 3,4,5 from v2 added to fixes-togreg branch of
iio.git.
Thanks for all these!
Jonathan
> ---
> v2: check if ret is negative value
> drivers/iio/dac/ad5504.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/iio/dac/ad5504.c b/drivers/iio/dac/ad5504.c
> index 242bdc7..1e9a1f4 100644
> --- a/drivers/iio/dac/ad5504.c
> +++ b/drivers/iio/dac/ad5504.c
> @@ -296,7 +296,11 @@ static int __devinit ad5504_probe(struct spi_device *spi)
> if (ret)
> goto error_put_reg;
>
> - voltage_uv = regulator_get_voltage(reg);
> + ret = regulator_get_voltage(reg);
> + if (ret < 0)
> + goto error_disable_reg;
> +
> + voltage_uv = ret;
> }
>
> spi_set_drvdata(spi, indio_dev);
>
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