Re: drivers/net/at1700.c: at1700_probe1: array overflow

From: Adrian Bunk
Date: Fri Mar 25 2005 - 15:39:02 EST


On Fri, Mar 25, 2005 at 10:42:11AM -0800, Roland Dreier wrote:
> Adrian> This can result in indexing in an array with 8 entries the
> Adrian> 10th entry.
>
> Well, not really, since the first 8 entries of the array have every
> 3-bit pattern. So pos3 & 0x07 will always match one of them.
>
> I agree it would be cleaner to make the loop only go up to 7 though.

You either have this (impossible) overflow, or the case l_i == 7 isn't
tested explicitely.

I'd say simply leave it as it is now.

But if noone disagrees, I'm inclined to add a comment.

> - R.

cu
Adrian

--

"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed

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