Re: [PATCH] kernel/irq/proc.c: set MAX_NAMELEN 11 instead of 10 whichexpress the maximize size of "%d" or "%u".

[Richard Weinberger]

On Sat, Oct 5, 2013 at 5:46 PM, Chen Gang <gang.chen@xxxxxxxxxxx> wrote:
> On 10/05/2013 11:41 PM, Joe Perches wrote:
>> On Sat, 2013-10-05 at 23:19 +0800, Chen Gang wrote:
>>> Theoretically, the maximize size of "%d" or "%u" is 11 (10 + '\0'), so
>>> need set MAX_NAMELEN 11 instead of 10.
>>
>> %d can be negative.
>>
>>
>>
>>
>
> Oh, really, it is incorrect. Al Viro succeeds once.  :-(
>
> And I should send patch v2 for it.

irq is in both register_irq_proc() and unregister_irq_proc() an unsigned int.
Therefore %d makes not really sense. Both should use %u.
IMHO sprintf() should also get replaced by snprintf() but that's a
matter of taste.

-- 
Thanks,
//richard
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