linux-kernel - Re: [PATCH] drm/tidss: Use the new api devm_drm_irq

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Date:   Wed, 9 Dec 2020 13:29:42 +0200
From:   Tomi Valkeinen <tomi.valkeinen@...com>
To:     Tian Tao <tiantao6@...ilicon.com>, <jsarha@...com>,
        <airlied@...ux.ie>, <dri-devel@...ts.freedesktop.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drm/tidss: Use the new api devm_drm_irq_install

On 09/12/2020 02:48, Daniel Vetter wrote:
> On Tue, Dec 08, 2020 at 03:50:59PM +0800, Tian Tao wrote:
>> Use devm_drm_irq_install to register interrupts so that
>> drm_irq_uninstall is not needed to be called.
>>
>> Signed-off-by: Tian Tao <tiantao6@...ilicon.com>
> 
> There's another drm_irq_install in the error path. But I'm not sure this
> is safe since you're chaning the order in which things get cleaned up now.
> So leaving this up to Tomi.

Right, I don't think this works. tidss irq_uninstall uses runtime_get/put, which needs to happen
before pm_runtime_disable. With devm_drm_irq_install that's not the case.

 Tomi

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