Re: [PATCH -queue 3/3] [loongson] 2f: add Cpufreq support

[Dominik Brodowski <linux@dominikbrodowski.net>]

Hey,

On Wed, Nov 11, 2009 at 03:09:59PM +0800, Wu Zhangjin wrote:
> +     printk(KERN_INFO "cpufreq: Loongson-2F CPU frequency driver.\n");
> +     result = cpufreq_register_driver(&loongson2_cpufreq_driver);
> +
> +     if (!result && !nowait) {
> +             saved_cpu_wait = cpu_wait;
> +             cpu_wait = loongson2_cpu_wait;
> +     }
> +
> +     cpufreq_register_notifier(&loongson2_cpufreq_notifier_block,
> +                               CPUFREQ_TRANSITION_NOTIFIER);

IMO you should register the transition notifier before register_driver(),
else there's a small window where a change may be initiate which is not
notified...

Best,
        Dominik