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SubjectRe: [Patch] Off by one in drivers/usb/input/yealink.c
* Randy.Dunlap (rdunlap@xenotime.net) wrote:
> On Wed, 28 Jun 2006 00:41:19 +0200 Eric Sesterhenn wrote:
>
> > hi,
> >
> > another off by one spotted by coverity (id #485),
> > we loop exactly one time too often
> >
> > Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
> >
> > --- linux-2.6.17-git11/drivers/usb/input/yealink.c.orig 2006-06-28 00:29:46.000000000 +0200
> > +++ linux-2.6.17-git11/drivers/usb/input/yealink.c 2006-06-28 00:30:04.000000000 +0200
> > @@ -350,7 +350,7 @@ static int yealink_do_idle_tasks(struct
> > val = yld->master.b[ix];
> > if (val != yld->copy.b[ix])
> > goto send_update;
> > - } while (++ix < sizeof(yld->master));
> > + } while (++ix < sizeof(yld->master)-1);
> >
> > /* nothing todo, wait a bit and poll for a KEYPRESS */
> > yld->stat_ix = 0;
>
> FWIW, on this one and the previous floppy.c patch,
> I would rather see the comparison be <= instead of using -1.

maybe it is too late, but wouldnt the <= make the loop
run even more iterations, like (++ix < sizeof() + 1)

greetings, Eric

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