Re: [libgpiod][PATCH] core: make the library NULL-aware

[Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>]

On Mon, Jan 09, 2023 at 06:36:56PM +0100, Bartosz Golaszewski wrote:
> On Mon, Jan 9, 2023 at 12:30 PM Andy Shevchenko
> <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:
> > On Mon, Jan 09, 2023 at 01:29:37PM +0200, Andy Shevchenko wrote:
> > > On Fri, Jan 06, 2023 at 12:51:29PM +0100, Bartosz Golaszewski wrote:
> > > > From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>

...

> > > >  GPIOD_API void gpiod_line_config_free(struct gpiod_line_config *config)
> > > >  {
> > > > +   if (!config)
> > > > +           return;
> > > > +
> > > >     free_refs(config);
> > > >     free(config);
> > > >  }
> > >
> > > At least this is redundant. free() is NULL-aware itself.
> >
> > And if free_refs() is not, it's better to make it explicit or fix that function
> > if possible.
> 
> free_refs() is not public and it's used elsewhere too where the config
> pointer is already checked. I prefer it this way.

Then perhaps

   if (config)
      free_refs(config);

   free(config);

?

P.S. Up to you since it's a minor stuff.

-- 
With Best Regards,
Andy Shevchenko