On Mon, Jan 27, 2014 at 05:36:24PM +0000, Russell King - ARM Linux wrote:
[..]
> > +static int armadaxp_wdt_clock_init(struct platform_device *pdev,
> > + struct orion_watchdog *dev)
> > +{
> > + int ret;
> > +
> > + dev->clk = of_clk_get_by_name(pdev->dev.of_node, "fixed");
> > + if (IS_ERR(dev->clk))
> > + return PTR_ERR(dev->clk);
> > + ret = clk_prepare_enable(dev->clk);
> > + if (ret)
> > + return ret;
> > +
> > + /* Enable the fixed watchdog clock input */
> > + atomic_io_modify(dev->reg + TIMER_CTRL,
> > + WDT_AXP_FIXED_ENABLE_BIT,
> > + WDT_AXP_FIXED_ENABLE_BIT);
> > +
> > + dev->clk_rate = clk_get_rate(dev->clk);
> > + return 0;
> > +}
>
> Doesn't this result in dev->clk being leaked? Or at least a difference
> in the way dev->clk needs to be cleaned up between these two functions?
>
Yes, indeed.
> I think it would be better in this case to use the standard clk_get() in
> the first function and always use clk_put()... until there is a devm_*
> version of the of_clk_get* functions.
>
Sound good.
Thanks,
--
Ezequiel García, Free Electrons
Embedded Linux, Kernel and Android Engineering
http://free-electrons.com
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