netdev - Re: [PATCH] ipv6: Keep index within tab

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Message-ID: <20090705034655.GA7635@gondor.apana.org.au>
Date:	Sun, 5 Jul 2009 11:46:55 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Roel Kluin <roel.kluin@...il.com>
Cc:	davem@...emloft.net, netdev@...r.kernel.org,
	akpm@...ux-foundation.org
Subject: Re: [PATCH] ipv6: Keep index within tab_unreach[]

Roel Kluin <roel.kluin@...il.com> wrote:
> Ensure that index `code' remains within array tab_unreach[]
> 
> Signed-off-by: Roel Kluin <roel.kluin@...il.com>
> ---
> diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
> index 36dff88..8f850de 100644
> --- a/net/ipv6/icmp.c
> +++ b/net/ipv6/icmp.c
> @@ -923,7 +923,7 @@ int icmpv6_err_convert(int type, int code, int *err)
>        switch (type) {
>        case ICMPV6_DEST_UNREACH:
>                fatal = 1;
> -               if (code <= ICMPV6_PORT_UNREACH) {
> +               if (code <= ICMPV6_PORT_UNREACH && code >= 0) {

Why not make code unsigned?

Cheers,
-- 
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Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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