From: Daniel Lezcano <daniel.lezcano@linaro.org>
To: Baruch Siach <baruch@tkos.co.il>
Cc: John Stultz <john.stultz@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH] clocksource: dw_apb: fix error check
Date: Mon, 27 May 2013 16:27:14 +0200 [thread overview]
Message-ID: <51A36D42.6080609@linaro.org> (raw)
In-Reply-To: <20130527134910.GU5037@tarshish>
On 05/27/2013 03:49 PM, Baruch Siach wrote:
> Hi Daniel,
>
> On Mon, May 27, 2013 at 03:14:23PM +0200, Daniel Lezcano wrote:
>> On 05/27/2013 01:51 PM, Baruch Siach wrote:
>>> irq_of_parse_and_map() returns 0 on error, while the code checks for NO_IRQ.
>>> This breaks on platforms that have NO_IRQ != 0.
>>>
>>> Cc: <stable@vger.kernel.org>
>>> Signed-off-by: Baruch Siach <baruch@tkos.co.il>
>>> ---
>>
>> Shouldn't the 'irq_of_parse_and_map' function to be fixed and return
>> NO_IRQ in case of error ? (even if some code checks the return value is
>> 'zero' in case of error [1], while some other code checks NO_IRQ [2]).
>
> Probably not. See http://lwn.net/Articles/470820/.
Very interesting. Thx for the pointer !
-- Daniel
--
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next prev parent reply other threads:[~2013-05-27 14:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-27 11:51 [PATCH] clocksource: dw_apb: fix error check Baruch Siach
2013-05-27 13:14 ` Daniel Lezcano
2013-05-27 13:49 ` Baruch Siach
2013-05-27 14:27 ` Daniel Lezcano [this message]
2013-05-29 8:22 ` Daniel Lezcano
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