linux-kernel - Re: (subset) [PATCH v7 2/3] leds: lp8860: Check return value of devm_mutex

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20250625090439.GQ795775@google.com>
Date: Wed, 25 Jun 2025 10:04:39 +0100
From: Lee Jones <lee@...nel.org>
To: Thomas Weißschuh <linux@...ssschuh.net>
Cc: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>,
	Waiman Long <longman@...hat.com>, Boqun Feng <boqun.feng@...il.com>,
	Vicentiu Galanopulo <vicentiu.galanopulo@...ote-tech.co.uk>,
	Will Deacon <will@...nel.org>, Han Xu <han.xu@....com>,
	Haibo Chen <haibo.chen@....com>,
	Yogesh Gaur <yogeshgaur.83@...il.com>,
	Mark Brown <broonie@...nel.org>, Pavel Machek <pavel@...nel.org>,
	Andrew Davis <afd@...com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	linux-kernel@...r.kernel.org, Bartosz Golaszewski <brgl@...ev.pl>,
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
	linux-spi@...r.kernel.org, imx@...ts.linux.dev,
	linux-leds@...r.kernel.org
Subject: Re: (subset) [PATCH v7 2/3] leds: lp8860: Check return value of
 devm_mutex_init()

On Thu, 19 Jun 2025, Thomas Weißschuh wrote:

> Hi Lee,
> 
> On 2025-06-19 13:34:56+0100, Lee Jones wrote:
> > On Tue, 17 Jun 2025 19:08:13 +0200, Thomas Weißschuh wrote:
> > > devm_mutex_init() can fail. With CONFIG_DEBUG_MUTEXES=y the mutex will be
> > > marked as unusable and trigger errors on usage.
> > > 
> > > Add the missed check.
> > 
> > Applied, thanks!
> > 
> > [2/3] leds: lp8860: Check return value of devm_mutex_init()
> >       commit: 426e0c8e8eed26b67bbbd138483bb5973724adae
> 
> Thanks, but (as mentioned in the cover letter) these patches should go
> together through the mutex/locking tree.
> Could you drop it on your side and give an Ack instead?

There has to be good reasons to do this.

I didn't see any dependents or dependencies in this patch.

-- 
Lee Jones [李琼斯]