Re: [PATCH v4 2/2] iio: adc: Add TI ADS131M0x ADC driver

[Andy Shevchenko <andriy.shevchenko@intel.com>]

On Sun, Dec 07, 2025 at 07:33:13PM +0000, Jonathan Cameron wrote:
> On Tue, 18 Nov 2025 15:18:21 +0100
> Oleksij Rempel <o.rempel@pengutronix.de> wrote:

...

> > +	clk = devm_clk_get_enabled(dev, NULL);
> 
> This surprised me, so I went digging.  Anyone know why
> the stub returns NULL?  Given that the normal function doesn't have
> that as an allowed return value that seems really odd.
> 
> Still, it does, so this code is fine if odd.

I believe it has to do something with an optional clocks or so, but OTOH
I think it's so odd that may be considered as a bug in CCF APIs.

> > +	if (IS_ERR_OR_NULL(clk)) {
> > +		if (IS_ERR(clk))
> > +			ret = PTR_ERR(clk);
> > +		else
> > +			ret = -ENODEV;
> > +
> > +		return dev_err_probe(dev, ret, "clk get enabled failed\n");
> > +	}

-- 
With Best Regards,
Andy Shevchenko