On 12/18/2012 03:33 AM, 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....@ingics.com>
added to fixes-togreg branch of iio.git
> ---
> Sorry. Just found I made the same mistake again.
> Here is v2, should check if ret is negative value.
> drivers/iio/dac/ad5446.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c
> index 3310cbb..607378f 100644
> --- a/drivers/iio/dac/ad5446.c
> +++ b/drivers/iio/dac/ad5446.c
> @@ -226,7 +226,11 @@ static int __devinit ad5446_probe(struct device *dev,
> const char *name,
> 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;
> }
>
> indio_dev = iio_device_alloc(sizeof(*st));
>
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