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Message-ID: <4c532a7b-d5b4-da5e-5703-c6f8ebfbc62b@linaro.org>
Date:   Fri, 20 Jan 2023 23:43:58 +0100
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Subject: Re: [PATCH v1 2/2] thermal: Fail object registration if thermal class
 is not registered
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To:     "Rafael J. Wysocki" <rjw@rjwysocki.net>,
        Linux PM <linux-pm@vger.kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:     LKML <linux-kernel@vger.kernel.org>,
        Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
        Zhang Rui <rui.zhang@intel.com>
References: <5905717.lOV4Wx5bFT@kreacher> <4780418.GXAFRqVoOG@kreacher>
From:   Daniel Lezcano <daniel.lezcano@linaro.org>
In-Reply-To: <4780418.GXAFRqVoOG@kreacher>
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On 20/01/2023 20:48, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> 
> If thermal_class is not registered with the driver core, there is no way
> to expose the interfaces used by the thermal control framework, so
> prevent thermal zones and cooling devices from being registered in
> that case by returning an error from object registration functions.
> 
> For this purpose, introduce class_is_registered() that checks the
> private pointer of the given class and returns 'false' if it is NULL,
> which means that the class has not been registered, and use it in the
> thermal framework.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>


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