Re: [PATCH] ledtrig-cpu: use spin_lock to replace mutex lock

From: Bryan Wu
Date: Mon Oct 22 2012 - 14:59:31 EST


Can I get some Acked or Tested-by from Rafael or Miles before I put it
in my linux-leds tree?


On Thu, Oct 18, 2012 at 12:34 PM, Bryan Wu <cooloney@xxxxxxxxx> wrote:
> On Thu, Oct 18, 2012 at 11:35 AM, Linus Walleij
> <linus.walleij@xxxxxxxxxx> wrote:
>> On Thu, Oct 18, 2012 at 8:18 PM, Bryan Wu <cooloney@xxxxxxxxx> 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@xxxxxxxxx>
>>> Reported-by: Rafael J. Wysocki <rjw@xxxxxxx>
>>> Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
>>> Signed-off-by: Bryan Wu <cooloney@xxxxxxxxx>
>> Looks correct to me:
>> Acked-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
> Thanks, Linus.
> Miles, could you please help to try this patch on your testing system?
> I really appreciate it.
> -Bryan
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