Re: [PATCH v3 2/3] staging: iio: ad7780: update voltage on read

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On Thu, 1 Nov 2018 15:20:55 +0000
"Ardelean, Alexandru" <alexandru.Ardelean@xxxxxxxxxx> wrote:

This looks wrong.
I admit this was done in the same way in the probe function, but that looks
a bit wrong as well.

Typically, the return value of `regulator_get_voltage()` would get checked
with:

ret = regulator_get_voltage(st->reg);
if (ret < 0)
   return ret;
*val = ret / 1000;

So, negative values are errors and zero & positive values are valid voltage
values.

I see. So -EINVAL is only used when sent the wrong info type?



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