Re: [PATCH v3 12/20] regulator: cros-ec: use devm_kmemdup_array()

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On Mon, Feb 03, 2025 at 12:40:23PM +0200, Raag Jadav wrote:
> On Mon, Feb 03, 2025 at 11:51:10AM +0200, Andy Shevchenko wrote:
> > On Mon, Feb 03, 2025 at 01:38:54PM +0530, Raag Jadav wrote:
> > > Convert to use devm_kmemdup_array() which is more robust.

...

> > >  	data->voltages_mV =
> > > -		devm_kmemdup(dev, resp.voltages_mv,
> > > -			     sizeof(u16) * data->num_voltages, GFP_KERNEL);
> > > +		devm_kmemdup_array(dev, resp.voltages_mv, data->num_voltages,
> > > +				   sizeof(u16), GFP_KERNEL);
> > 
> > Wondering if this can be sizeof(*data->voltages_mV) that makes code robust
> > against type changes.
> 
> True, but I opted for a blind treewide conversion that is consistent with
> existing driver conventions. Perhaps a better place for it is a separate
> filewide series?

I think an additional series is just an increased churn. In this you are
changing an API in use, it's completely fine to update a parameter in
accordance with new API. I.o.w. I consider these two are coupled enough
to be semantically and logically in a single change along with the fact
that in all such case you are touching the same line(s).

-- 
With Best Regards,
Andy Shevchenko






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