Re: [PATCH Resend] cpufreq: Set cpufreq_cpu_data to NULL before putting kobject

From: Viresh Kumar
Date: Sun Feb 01 2015 - 23:00:01 EST


On 2 February 2015 at 09:26, ethan zhao <ethan.zhao@xxxxxxxxxx> wrote:
> How to prevent the policy to be freed between
>
> cpufreq_cpu_get() and cpufreq_cpu_put() ?

kobject_get() increases the reference count of a policy and the policy
will only be freed when this is zero. And it will only be zero once all
cpufreq_cpu_get() are matched with corresponding cpufreq_cpu_put().

> You are maxing up the water with sand ?

:)
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