Re: [PATCH v2 4/6] iio: accel: mma8452: Use dev_err_probe()

[Jonathan Cameron]

On Wed, 22 Apr 2026 22:37:32 +0300
Andy Shevchenko <andriy.shevchenko@xxxxxxxxx> wrote:

> On Wed, Apr 22, 2026 at 10:26:41PM +0530, Sanjay Chitroda wrote:
> 
> > dev_err_probe() makes error code handling simpler and handle
> > deferred probe nicely (avoid spamming logs).  
> 
> This patch should go earlier than dev temporary variable one.
> And dev needs to be introduced here.
> 
> ...
> 
> >  	ret = regulator_enable(data->vddio_reg);
> >  	if (ret) {
> > -		dev_err(dev, "failed to enable VDDIO regulator!\n");
> > +		dev_err_probe(dev, ret, "failed to enable VDDIO regulator!\n");
> >  		goto disable_regulator_vdd;  
> 
> Before doing these patches, please fix the mess with the devm/non-devm ordering.
> There shouldn't be goto after any devm calls.
> 
I briefly wondered what you meant here.  Key is you are referring to
devm_request_threaded_irq() much further down.

Absolutely agree that's wrong.  Rule is devm until you stop doing devm and
then no more devm.

Here it looks like we can take the whole thing devm but it will need
some custom callbacks and we may run into corner cases with runtime_pm()
messing with the supplies and devm cleanup doing so (that applies even
without devm being involved)

Jonathan



> >  	}  
>