Re: [PATCH 1/1] iio/scmi: Add reading "raw" attribute.

From: Jonathan Cameron
Date: Thu Sep 30 2021 - 11:22:27 EST



> >> + /* Use 32-bit value, since practically there is no need in 64 bits */
> >> + *val = (u32)readings[ch->scan_index].value;
> > We should check it fits and if doesn't return an error rather than pretending all was fine.
> >
> What kind of error to return in the case it does not fit - ENOEXEC (Exec format error) ?

That one is a bit obscure.

I'd go with either -ERANGE I think as we are reflecting that the clamp to 32 bit
is not representable.