From: Miguel Ojeda <ojeda@kernel.org>
To: gregkh@linuxfoundation.org
Cc: Benjamin.Cheatham@amd.com, Jonathan.Cameron@huawei.com,
dakr@kernel.org, dan.j.williams@intel.com,
linux-acpi@vger.kernel.org, linux-cxl@vger.kernel.org,
linux-kernel@vger.kernel.org, marc.herbert@linux.intel.com,
rafael.j.wysocki@intel.com, rafael@kernel.org,
sudeep.holla@arm.com, Dan Carpenter <dan.carpenter@linaro.org>,
Kees Cook <kees@kernel.org>
Subject: Re: [PATCH] driver core: faux: fix Undefined Behavior in faux_device_destroy()
Date: Sat, 14 Jun 2025 12:50:37 +0200 [thread overview]
Message-ID: <20250614105037.1441029-1-ojeda@kernel.org> (raw)
In-Reply-To: <2025061313-theater-surrender-944c@gregkh>
On Fri, 13 Jun 2025 20:33:42 -0400 Greg KH <gregkh@linuxfoundation.org> wrote:
>
> Great writeup, but as Miguel says, this isn't needed at all, the kernel
> relies on the compiler to be sane :)
We may still want to clean them up, e.g. for tooling -- Kees/Dan: do we?
e.g. I see a similar case with discussion at:
https://lore.kernel.org/lkml/3f1e7aaa-501a-44f1-8122-28e9efa0a33c@web.de/
Which in the end was picked up as commit 2df2c0caaecf ("fbdev: au1100fb:
Move a variable assignment behind a null pointer check").
Cheers,
Miguel
next prev parent reply other threads:[~2025-06-14 10:51 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-13 19:15 [PATCH] driver core: faux: fix Undefined Behavior in faux_device_destroy() marc.herbert
2025-06-13 20:20 ` Miguel Ojeda
2025-06-14 0:33 ` Greg KH
2025-06-14 10:50 ` Miguel Ojeda [this message]
2025-06-14 11:53 ` Greg KH
2025-06-14 14:53 ` Marc Herbert
2025-06-16 3:35 ` Greg KH
2025-06-16 14:02 ` Alice Ryhl
2025-06-18 23:43 ` Marc Herbert
2025-06-19 0:23 ` Dan Williams
2025-06-19 2:35 ` Dan Carpenter
2025-06-19 3:33 ` Marc Herbert
2025-06-19 4:02 ` Dan Carpenter
2025-06-26 0:55 ` Kent Overstreet
2025-06-30 23:24 ` Marc Herbert
2025-06-25 15:20 ` Dan Carpenter
2025-06-25 22:30 ` Marc Herbert
2025-06-25 23:18 ` Dan Carpenter
2025-06-25 15:21 ` Dan Carpenter
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