linux-kernel - Re: [PATCH v2 RESEND] drm/msm/dpu: reorder pointer operations after sanity checks to avoid NULL deref

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Message-ID: <f97e30e8-10f0-43f1-be87-028ad257577c@web.de>
Date: Sun, 30 Mar 2025 11:06:42 +0200
From: Markus Elfring <Markus.Elfring@....de>
To: Qasim Ijaz <qasdev00@...il.com>, freedreno@...ts.freedesktop.org,
 dri-devel@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
 Abhinav Kumar <quic_abhinavk@...cinc.com>, David Airlie <airlied@...il.com>,
 Dmitry Baryshkov <lumag@...nel.org>,
 Jessica Zhang <quic_jesszhan@...cinc.com>,
 Marijn Suijten <marijn.suijten@...ainline.org>,
 Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
 Simona Vetter <simona@...ll.ch>
Cc: LKML <linux-kernel@...r.kernel.org>,
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Subject: Re: [PATCH v2 RESEND] drm/msm/dpu: reorder pointer operations after
 sanity checks to avoid NULL deref

…
> Fix this by reordering the dereference after the sanity checks.

Can my previous patch review contribution trigger more desirable collateral evolution
also for this development topic?
https://lore.kernel.org/all/6f01f71b-284b-4841-bda9-a3934cb4efc8@web.de/
https://lkml.org/lkml/2025/3/10/696

Is any automated source code analysis involved here?

Regards,
Markus