Re: [PATCH v3 4/4] clk: pmc-atom: use devm_kstrdup_const()
From: Andy Shevchenko
Date: Mon Sep 24 2018 - 08:57:39 EST
On Mon, Sep 24, 2018 at 01:44:19PM +0200, Bartosz Golaszewski wrote:
> pon., 24 wrz 2018 o 13:23 Andy Shevchenko
> <andriy.shevchenko@xxxxxxxxxxxxxxx> napisaÅ(a):
> >
> > On Mon, Sep 24, 2018 at 12:11:50PM +0200, Bartosz Golaszewski wrote:
> > > Use devm_kstrdup_const() in the pmc-atom driver. This mostly serves as
> > > an example of how to use this new routine to shrink driver code.
> > >
> > > While we're at it: replace a call to kcalloc() with devm_kcalloc().
> >
> > > @@ -352,8 +344,6 @@ static int plt_clk_probe(struct platform_device *pdev)
> > > goto err_drop_mclk;
> > > }
> > >
> > > - plt_clk_free_parent_names_loop(parent_names, data->nparents);
> > > -
> > > platform_set_drvdata(pdev, data);
> > > return 0;
> >
> > I don't think this is a good example.
> >
> > You changed a behaviour here in the way that you keep all chunks of memory
> > (even small enough for pointers) during entire life time of the driver, which
> > pretty likely would be forever till next boot.
> >
> > In the original case the memory was freed immediately in probe either it fails
> > or returns with success.
> >
> > NAK, sorry.
> >
> >
>
> I see.
>
> I'd like to still merge patches 1-3 and then I'd come up with better
> examples for the next release cycle once these are in?
I'm fine with first three, though I can't come up with better example for you
now. My previous comment solely to clk-pmc-atom code.
--
With Best Regards,
Andy Shevchenko