linux-kernel - Re: [PATCH] mfd: tps65911-comparator: Fix an off by one bug

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Message-ID: <20180420082150.u2oovqr4b4fd6vrq@mwanda>
Date:   Fri, 20 Apr 2018 11:21:50 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     Jorge Eduardo Candelaria <jedu@...mlogic.co.uk>,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] mfd: tps65911-comparator: Fix an off by one bug

On Fri, Apr 20, 2018 at 09:09:43AM +0100, Lee Jones wrote:
> On Thu, 19 Apr 2018, Dan Carpenter wrote:
> 
> > The tps_comparators[] array is used in two places.  We only access the
> > COMP1 (1) and COMP2 (2) elements.  Unfortunately, we're accessing the
> > wrong elements and also one element beyond the end of the array.  There
> > was supposed to be a zero element at the start of the array which is
> > isn't accessed but makes the math work out nicely.
> 
> I normally just apply patches from you, but this is a hack, right?
> 

I liked it, I thought it was nice.  It uses 32 bytes but any fix was
going to use *some* memory.  I don't have strong feelings about it
though, if you want to write a different patch I can do that instead.

regards,
dan carpenter