linux-kernel - Re: [PATCH 00/15] cpufreq: initialize drivers .owner field with THIS

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Message-ID: <CAKohpokTPBv5Z7uGffRJqKB-V=pMi8WAeWUuxNvt+3QV3YcRKg@mail.gmail.com>
Date:	Wed, 31 Jul 2013 22:09:56 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Sachin Kamat <sachin.kamat@...aro.org>
Cc:	rjw@...k.pl, linaro-kernel@...ts.linaro.org, patches@...aro.org,
	cpufreq@...r.kernel.org, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org, arnd.bergmann@...aro.org
Subject: Re: [PATCH 00/15] cpufreq: initialize drivers .owner field with THIS_MODULE

On 31 July 2013 22:06, Sachin Kamat <sachin.kamat@...aro.org> wrote:
> Hi Viresh,
>
> On 31 July 2013 19:49, Viresh Kumar <viresh.kumar@...aro.org> wrote:
>> CPUFreq core does following at multiple places:
>> module_{get|put}(cpufreq_driver->owner)).
>>
>> This is done to make sure module doesn't get unloaded if it is currently in use.
>> This will work only if the .owner field of cpufreq driver is initialized with a
>> valid pointer.
>>
>> This field wasn't initialized for many cpufreq driver, lets initialize it with
>> THIS_MODULE.
>
>
> Isn't it possible to do this inside cpufreq_register_driver function
> in a similar way as done for platform_driver_register [1].
>
> [1] https://lkml.org/lkml/2013/5/25/5

Don't know if its possible to set it to something other than THIS_MODULE.
In which case we want something else to be done.
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