Re: [PATCH v2] iio: magnetometer: ak8974: Silence deferred-probe error

From: Andy Shevchenko
Date: Fri Apr 17 2020 - 16:50:53 EST


On Fri, Apr 17, 2020 at 11:49 PM Andy Shevchenko
<andy.shevchenko@xxxxxxxxx> wrote:
> On Fri, Apr 17, 2020 at 7:24 PM Dmitry Osipenko <digetx@xxxxxxxxx> wrote:
> >
> > It's not uncommon that voltage regulator becomes available later during
> > kernel's boot process. This patch adds info message about unavailable
> > regulators in a case of the deferred-probe error and also amends the
> > error message with a error code.
>
>
> > + if (ret == -EPROBE_DEFER)
>
> > + dev_info(&i2c->dev,
> > + "regulators unavailable, deferring probe\n");
>
> I dunno why you think it is worth to spam log with this?
> This message will be printed as many times as driver got deferred
> probe cycle (maybe dozens in worst case).

As you may see in other drivers we usually have the opposite check and
print error message in case of != EPROBE_DEFER.


>
> > + else
> > + dev_err(&i2c->dev, "cannot get regulators: %d\n", ret);

--
With Best Regards,
Andy Shevchenko