linux-kernel - Re: [PATCH] ledtrig-cpu: use spin

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

Message-ID: <CAK5ve-Lm6T0u08ZV+kw5+X_JUAoXksoPcxBo9FKAqQgdp6RRLA@mail.gmail.com>
Date:	Thu, 18 Oct 2012 12:34:10 -0700
From:	Bryan Wu <cooloney@...il.com>
To:	Linus Walleij <linus.walleij@...aro.org>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Miles Lane <miles.lane@...il.com>,
	akpm <akpm@...ux-foundation.org>,
	Linux LED Subsystem <linux-leds@...r.kernel.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ledtrig-cpu: use spin_lock to replace mutex lock

On Thu, Oct 18, 2012 at 11:35 AM, Linus Walleij
<linus.walleij@...aro.org> wrote:
> On Thu, Oct 18, 2012 at 8:18 PM, Bryan Wu <cooloney@...il.com> wrote:
>
>> Mutex lock is not safe in atomic context like the bug reported by
>> Miles Lane:
> (...)
>> This patch replace mutex lock with spin lock which is safe for this case.
>>
>> Reported-by: Miles Lane <miles.lane@...il.com>
>> Reported-by: Rafael J. Wysocki <rjw@...k.pl>
>> Cc: Linus Walleij <linus.walleij@...aro.org>
>> Signed-off-by: Bryan Wu <cooloney@...il.com>
>
> Looks correct to me:
> Acked-by: Linus Walleij <linus.walleij@...aro.org>
>

Thanks, Linus.

Miles, could you please help to try this patch on your testing system?
I really appreciate it.

-Bryan
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/