Re: [PATCH 2/3] hwmon: (lm90) add support to handle irq

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On 07/05/2013 01:47 PM, Guenter Roeck wrote:
> On Fri, Jul 05, 2013 at 11:35:05AM -0600, Stephen Warren wrote:
>> On 07/04/2013 01:57 AM, Wei Ni wrote:
>>> Add support to handle irq. When the temperature touch
>>> the limit value, the driver can handle the interrupt.
>>
>>> +	if (client->irq >= 0) {
>>
>> 0 isn't a valid IRQ, so you can write that as simply if (client->irq).
>>
> If I recall correctly, it is valid on some platforms.

I thought ARM (just some ARM sub-architectures?) might have been the
last architecture, and even irrespective of that, we were trying not to
introduce any new code that relies on this strangeness, so it doesn't
propagate?
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