On Fri, Apr 25, 2014 at 04:07:00PM +0200, Gregory CLEMENT wrote:
> +#if defined(CONFIG_HAVE_CLK)
> +static int try_enable_clk(struct platform_device *pdev)
> +{
> + struct clk *clk = devm_clk_get(&pdev->dev, NULL);
> +
> + /* Not all platforms have a clk so it is not an error if the clock
> + does not exists. */
> + if (!IS_ERR(clk))
> + if (clk_prepare_enable(clk))
> + return -ENODEV;
> + return 0;
> +}
> +
> +static int try_disable_clk(struct platform_device *pdev)
> +{
> + struct clk *clk = devm_clk_get(&pdev->dev, NULL);
> +
> + /* Not all platforms have a clk so it is not an error if the clock
> + does not exists. */
> + if (!IS_ERR(clk))
> + clk_disable_unprepare(clk);
> +
> + return 0;
> +}
OMG.
You do realise that clk_get() ref-counts against the module which
provided the clock, so this is akin to an explicit leaking module
ref-counts.
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