Re: [PATCH v3 3/3] clk: mvebu: migrate CP110 system controller to clk_hw API and registration

From: Stephen Boyd
Date: Fri Sep 23 2016 - 18:07:07 EST


On 09/24, Marcin Wojtas wrote:
> Hi Stephen,
>
> 2016-09-23 23:47 GMT+02:00 Stephen Boyd <sboyd@xxxxxxxxxxxxxx>:
> > On 09/21, Marcin Wojtas wrote:
> >> @@ -203,80 +202,75 @@ static int cp110_syscon_clk_probe(struct platform_device *pdev)
> >> if (ret)
> >> return ret;
> >>
> >> - cp110_clks = devm_kcalloc(&pdev->dev, sizeof(struct clk *),
> >> - CP110_CLK_NUM, GFP_KERNEL);
> >> - if (!cp110_clks)
> >> - return -ENOMEM;
> >> -
> >> - cp110_clk_data = devm_kzalloc(&pdev->dev,
> >> - sizeof(*cp110_clk_data),
> >> + cp110_clk_data = devm_kcalloc(&pdev->dev, sizeof(*cp110_clk_data),
> >> + sizeof(struct clk_hw *) * CP110_CLK_NUM,
> >> GFP_KERNEL);
> >
> > This doesn't look right. Why are calloc()ing clk_hw_onecell_data this
> > way?
>
> After some time, at a first sight it seems I should've used following:
> cp110_clk_data = devm_kzalloc(&pdev->dev, sizeof(*cp110_clk_data) +
> sizeof(struct
> clk_hw *) * CP110_CLK_NUM,
> GFP_KERNEL);
>
> I'll re-check, but is that what you meant?

Yes that looks better.

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