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Re: [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks

From Stephen Boyd <sboyd@codeaurora.org>
Newsgroups linux.kernel
Subject Re: [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks
Date 2016-12-14 00:30 +0100
Message-ID <sO4Ge-7q4-9@gated-at.bofh.it> (permalink)
References <sMxMl-6wk-27@gated-at.bofh.it> <sMxMm-6wk-37@gated-at.bofh.it> <sNIml-28A-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 12/13, Andy Shevchenko wrote:
> On Fri, Dec 9, 2016 at 8:01 PM, Irina Tirdea <irina.tirdea@intel.com> wrote:
> 
> > --- a/drivers/clk/x86/Makefile
> > +++ b/drivers/clk/x86/Makefile
> > @@ -1,2 +1,5 @@
> >  clk-x86-lpss-objs              := clk-lpt.o
> >  obj-$(CONFIG_X86_INTEL_LPSS)   += clk-x86-lpss.o
> 
> > +ifeq ($(CONFIG_COMMON_CLK), y)
> 
> Hmm... I think (I didn't check) we don't go here otherwise.

We should move this statement to drivers/clk/Makefile around the
x86 line.

> > +                                       void __iomem *base,
> > +                                       const char **parent_names,
> > +                                       int num_parents)
> > +{
> > +       struct clk_plt *pclk;
> > +       struct clk_init_data init;
> > +       int ret;
> > +
> > +       pclk = devm_kzalloc(&pdev->dev, sizeof(*pclk), GFP_KERNEL);
> > +       if (!pclk)
> > +               return ERR_PTR(-ENOMEM);
> > +
> > +       init.name =  kasprintf(GFP_KERNEL, "%s%d", PLT_CLK_NAME_BASE, id);
> 
> devm_kasprintf()

Please no.

> 
> > +       init.ops = &plt_clk_ops;
> > +       init.flags = 0;
> > +       init.parent_names = parent_names;
> > +       init.num_parents = num_parents;
> > +
> > +       pclk->hw.init = &init;
> > +       pclk->reg = base + id * PMC_CLK_CTL_SIZE;
> > +       spin_lock_init(&pclk->lock);
> > +
> > +       ret = devm_clk_hw_register(&pdev->dev, &pclk->hw);
> > +       if (ret)
> > +               goto err_free_init;
> > +
> > +       pclk->lookup = clkdev_hw_create(&pclk->hw, init.name, NULL);
> > +       if (!pclk->lookup) {
> > +               ret = -ENOMEM;
> > +               goto err_free_init;
> > +       }
> > +
> 
> > +       kfree(init.name);
> 
> devm_kfree();

It's all local to this function, devm isn't helping anything.
Having one kfree() would be good though. And using init.name for
the clkdev lookup is probably wrong and should be replaced with
something more generic along with an associated device name.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

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Thread

Re: [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks Andy Shevchenko <andy.shevchenko@gmail.com> - 2016-12-13 00:40 +0100
  Re: [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> - 2016-12-13 01:20 +0100
    Re: [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks Andy Shevchenko <andy.shevchenko@gmail.com> - 2016-12-13 01:30 +0100
      Re: [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks Darren Hart <dvhart@infradead.org> - 2016-12-16 19:40 +0100
        Re: [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks Andy Shevchenko <andy.shevchenko@gmail.com> - 2016-12-16 19:50 +0100
          Re: [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks Darren Hart <dvhart@infradead.org> - 2016-12-16 20:30 +0100
            Re: [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks Andy Shevchenko <andy.shevchenko@gmail.com> - 2016-12-16 23:30 +0100
              Re: [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks Darren Hart <dvhart@infradead.org> - 2016-12-17 00:00 +0100
        Re: [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks Mark Brown <broonie@kernel.org> - 2016-12-19 12:10 +0100
    Re: [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks Andy Shevchenko <andy.shevchenko@gmail.com> - 2016-12-13 02:20 +0100
  Re: [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks Stephen Boyd <sboyd@codeaurora.org> - 2016-12-14 00:30 +0100
    Re: [alsa-devel] [PATCH v6 1/3] clk: x86: Add Atom PMC platform  clocks Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> - 2016-12-16 06:20 +0100
      Re: [alsa-devel] [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks Andy Shevchenko <andy.shevchenko@gmail.com> - 2016-12-16 09:50 +0100
        Re: [alsa-devel] [PATCH v6 1/3] clk: x86: Add Atom PMC platform  clocks Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> - 2016-12-16 16:00 +0100
      Re: [alsa-devel] [PATCH v6 1/3] clk: x86: Add Atom PMC platform  clocks Stephen Boyd <sboyd@codeaurora.org> - 2016-12-17 02:40 +0100
        Re: [alsa-devel] [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks Andy Shevchenko <andy.shevchenko@gmail.com> - 2016-12-17 15:00 +0100
          Re: [alsa-devel] [PATCH v6 1/3] clk: x86: Add Atom PMC platform  clocks Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> - 2016-12-19 17:20 +0100
            Re: [alsa-devel] [PATCH v6 1/3] clk: x86: Add Atom PMC platform  clocks Stephen Boyd <sboyd@codeaurora.org> - 2016-12-22 00:10 +0100
              Re: [alsa-devel] [PATCH v6 1/3] clk: x86: Add Atom PMC platform  clocks Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> - 2016-12-22 02:10 +0100
                Re: [alsa-devel] [PATCH v6 1/3] clk: x86: Add Atom PMC platform  clocks Stephen Boyd <sboyd@codeaurora.org> - 2016-12-22 19:30 +0100
                Re: [alsa-devel] [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks Andy Shevchenko <andy.shevchenko@gmail.com> - 2016-12-22 19:50 +0100

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