linux-kernel - Re: [v2] drm/msm: add null checks for drm device to avoid crash during probe defer

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Message-ID: <2a3b6824-7a76-308c-c7a7-cc7c6001dfcb@redhat.com>
Date:   Tue, 27 Sep 2022 11:02:49 +0200
From:   Javier Martinez Canillas <javierm@...hat.com>
To:     Vinod Polimera <vpolimer@....qualcomm.com>,
        "dmitry.baryshkov@...aro.org" <dmitry.baryshkov@...aro.org>,
        "Vinod Polimera (QUIC)" <quic_vpolimer@...cinc.com>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
        "freedreno@...ts.freedesktop.org" <freedreno@...ts.freedesktop.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Cc:     "dianders@...omium.org" <dianders@...omium.org>,
        "vpolimer@...cinc.com" <vpolimer@...cinc.com>,
        Abhinav Kumar <abhinavk@...cinc.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "swboyd@...omium.org" <swboyd@...omium.org>,
        "kalyant@...cinc.com" <kalyant@...cinc.com>
Subject: Re: [v2] drm/msm: add null checks for drm device to avoid crash
 during probe defer

Hello Vinod and Dmitry,

On 9/27/22 09:31, Vinod Polimera wrote:
>> -----Original Message-----
>> From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
>> Sent: Friday, August 26, 2022 2:11 PM
>> To: Vinod Polimera (QUIC) <quic_vpolimer@...cinc.com>; dri-
>> devel@...ts.freedesktop.org; linux-arm-msm@...r.kernel.org;
>> freedreno@...ts.freedesktop.org; devicetree@...r.kernel.org
>> Cc: linux-kernel@...r.kernel.org; robdclark@...il.com;
>> dianders@...omium.org; vpolimer@...cinc.com; swboyd@...omium.org;
>> kalyant@...cinc.com
>> Subject: Re: [v2] drm/msm: add null checks for drm device to avoid crash
>> during probe defer
>>

[...]

>> Vinod, do we still want to pursue this fix? If so, could you please
>> update it according to the comment.
>>

I don't think this patch is needed anymore, since AFAICT the issue has
been fixed by commit 0a58d2ae572a ("drm/msm: Make .remove and .shutdown
HW shutdown consistent") which is already in the drm/drm-next branch.

-- 
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat