linux-kernel - Re: [PATCH 2/3] leds: lp5521/5523: Remove duplicate mutex

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Message-ID: <529D32BC.2020504@ti.com>
Date:	Tue, 3 Dec 2013 10:24:12 +0900
From:	Milo Kim <milo.kim@...com>
To:	Bryan Wu <cooloney@...il.com>
CC:	lkml <linux-kernel@...r.kernel.org>,
	Linux LED Subsystem <linux-leds@...r.kernel.org>,
	Pali Rohár <pali.rohar@...il.com>
Subject: Re: [PATCH 2/3] leds: lp5521/5523: Remove duplicate mutex

Hi Bryan,

On 12/03/2013 04:40 AM, Bryan Wu wrote:
> On Wed, Nov 20, 2013 at 10:14 PM, Milo Kim <milo.kim@...com> wrote:
>> It can be a problem when a pattern is loaded via the firmware interface.
>> LP55xx common driver has already locked the mutex in 'lp55xx_firmware_loaded()'.
>> So it should be deleted.
>>
>
> Looks like lp5521_update_program_memory() will be called by
> store_engine_load() without holding a lock after this change, is this
> correct? I think you need also update store_engine_load() to hold the
> lock when calling lp5521_update_program_memory().

Thanks, good point! I've just sent the patch-v2.

Best regards,
   Milo

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