linux-kernel - Re: [PATCH RESEND v6] checkpatch: add uninitialized pointer with _

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Message-ID: <43f43063b81da41b693d5eb8178d5c55ebaaa168.camel@gmail.com>
Date: Tue, 25 Nov 2025 21:41:47 +0530
From: ally heev <allyheev@...il.com>
To: Krzysztof Kozlowski <krzk@...nel.org>, Dwaipayan Ray	
 <dwaipayanray1@...il.com>, Lukas Bulwahn <lukas.bulwahn@...il.com>, Joe
 Perches	 <joe@...ches.com>, Jonathan Corbet <corbet@....net>, Andy
 Whitcroft	 <apw@...onical.com>
Cc: workflows@...r.kernel.org, linux-doc@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Dan Carpenter <dan.carpenter@...aro.org>,
 David Hunter <david.hunter.linux@...il.com>, Shuah Khan
 <skhan@...uxfoundation.org>, Viresh Kumar	 <vireshk@...nel.org>, Nishanth
 Menon <nm@...com>, Stephen Boyd <sboyd@...nel.org>,  linux-pm
 <linux-pm@...r.kernel.org>, dan.j.williams@...el.com, Geert Uytterhoeven	
 <geert@...ux-m68k.org>, James Bottomley
 <James.Bottomley@...senpartnership.com>
Subject: Re: [PATCH RESEND v6] checkpatch: add uninitialized pointer with
 __free attribute check

On Tue, 2025-11-25 at 16:09 +0100, Krzysztof Kozlowski wrote:
> On 25/11/2025 14:32, Ally Heev wrote:
> > uninitialized pointers with __free attribute can cause undefined
> > behavior as the memory randomly assigned to the pointer is freed
> > automatically when the pointer goes out of scope.
> > add check in checkpatch to detect such issues.
> > 
> > Suggested-by: Dan Carpenter <dan.carpenter@...aro.org>
> > Link: https://lore.kernel.org/all/8a4c0b43-cf63-400d-b33d-d9c447b7e0b9@suswa.mountain/
> > Link: https://lore.kernel.org/all/58fd478f408a34b578ee8d949c5c4b4da4d4f41d.camel@HansenPartnership.com/
> > Acked-by: Dan Williams <dan.j.williams@...el.com>
> > Signed-off-by: Ally Heev <allyheev@...il.com>
> 
> 
> <form letter>
> This is a friendly reminder during the review process.
> 
> It looks like you received a tag and forgot to add it.
> 
> If you do not know the process, here is a short explanation:
> Please add Acked-by/Reviewed-by/Tested-by tags when posting new versions
> of patchset, under or above your Signed-off-by tag, unless patch changed
> significantly (e.g. new properties added to the DT bindings). Tag is
> "received", when provided in a message replied to you on the mailing
> list. Tools like b4 can help here. However, there's no need to repost
> patches *only* to add the tags. The upstream maintainer will do that for
> tags received on the version they apply.
> 
> Please read:
> https://elixir.bootlin.com/linux/v6.12-rc3/source/Documentation/process/submitting-patches.rst#L577
> 
> If a tag was not added on purpose, please state why and what changed.
> </form letter>
> 
> 
> Best regards,
> Krzysztof

Oopsie. I should have sent a new version instead of resending a failed
one. I have updated the `UNINITIALIZED_PTR_WITH_FREE` error description
in the checkpatch doc as outlined in v6 changelog, so, didn't add a
Reviewed-by tag

For some reason gmail blocked me from sending v6 to everyone in the
patch except me. b4 thought it successfully sent the patch and
incremented the version number. So, I had to resend it

Thanks,
Ally