Re: [PATCH 5/5] Fixes a potential bug in android/logger.c

From: Greg KH
Date: Mon Aug 13 2012 - 22:01:07 EST


On Thu, Aug 02, 2012 at 09:50:44AM +1000, Ryan Mallon wrote:
> On 01/08/12 14:54, Cruz Julian Bishop wrote:
> > Previously, when calling is_between(a, b, c), the calculation was wrong.
> > It counted C as between A and B if C was equal to B, but not A.
> >
> > Example of this are:
> >
> > is_between(1, 10, 10) = 1 (Expected: 0)
> > is_between(1, 10, 1) = 0 (Expected: 0)
> > is_between(20, 10, 10) = 1 (Expected: 0)
> >
> > And so on and so forth.
> >
> > Obviously, ten is not a number between one and ten - only two to eight are, so I made this patch :)
>
> Is nine not a number between one and ten? :-p.
>
> The question with a patch like this is whether the function's
> documentation, which says it returns 1 if a < c < b is wrong, or whether
> the implementation, which does a < c <= b is wrong. If the documentation
> is wrong, and something is relying on the current implementation, then
> this patch might actually break things.

I agree, which is correct? I'd stick with the code for now, care to fix
the comment instead?

greg k-h
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