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

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Message-ID: <25e29571-6b96-49cc-aa72-e3040fde8004@web.de>
Date: Sun, 9 Mar 2025 11:00:15 +0100
From: Markus Elfring <Markus.Elfring@....de>
To: Qasim Ijaz <qasdev00@...il.com>, dri-devel@...ts.freedesktop.org,
 freedreno@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org
Cc: LKML <linux-kernel@...r.kernel.org>,
 Abhinav Kumar <quic_abhinavk@...cinc.com>, David Airlie <airlied@...il.com>,
 Dmitry Baryshkov <dmitry.baryshkov@...aro.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>
Subject: Re: [PATCH] drm/msm/dpu: reorder pointer operations after sanity
 checks to avoid NULL deref

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

Another wording suggestion:
Thus move the assignment of the variable “dpu_enc” behind a null pointer check.


Would an other summary phrase be nicer?

Regards,
Markus