Re: [PATCH v3 09/10] iio: adc: ad7124: Add error reporting during probe

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On Fri, Nov 22, 2024 at 10:25:43PM +0200, Andy Shevchenko wrote:
> On Fri, Nov 22, 2024 at 1:34 PM Uwe Kleine-König
> <u.kleine-koenig@xxxxxxxxxxxx> wrote:
> >
> > A driver that silently fails to probe is annoying and hard to debug. So
> > add messages in the error paths of the probe function.
> 
> ...
> 
> > +/* Only called during probe, so dev_err_probe() can be used */
> 
> It's a harmless comment, but I think dev_err_probe() name is good
> enough to give such a hint.

Seems to be subjective. I guess I found already too many functions using
dev_err_probe() that are called also after .probe().

> >         ret = ad7124_soft_reset(st);
> >         if (ret < 0)
> 
> > +               /* ad7124_soft_reset() already emitted an error message */
> 
> To me it looks like an almost useless comment.

Same as above. If one of the first thoughts when you look at this code
is: "Huh, no error message in this exit code", it helps.

I ignored your side notes for now as they wouldn't affect this patch. I
made a note for later however.

Best regards
Uwe

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