Linux Ethernet Bridging - Jul 2010 - [Bridge] [PATCH 7/8] net: bridge: fix sign bug

ipv6_skip_exthdr() can return error code that is below zero.
'offset' is unsigned, so it makes no sense.
ipv6_skip_exthdr() returns 'int' so we can painlessly change type of
offset to int.

Signed-off-by: Kulikov Vasiliy <segooon at gmail.com>
---
 net/bridge/br_multicast.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 27ae946..85afcda 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1435,7 +1435,7 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br,
 	struct icmp6hdr *icmp6h;
 	u8 nexthdr;
 	unsigned len;
-	unsigned offset;
+	int offset;
 	int err;
 
 	if (!pskb_may_pull(skb, sizeof(*ip6h)))
-- 
1.7.0.4

On Thu, 15 Jul 2010 22:47:33 +0400
Kulikov Vasiliy <segooon at gmail.com> wrote:
> ipv6_skip_exthdr() can return error code that is below zero.
> 'offset' is unsigned, so it makes no sense.
> ipv6_skip_exthdr() returns 'int' so we can painlessly change type
of
> offset to int.
> 
> Signed-off-by: Kulikov Vasiliy <segooon at gmail.com>
> ---
>  net/bridge/br_multicast.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
> index 27ae946..85afcda 100644
> --- a/net/bridge/br_multicast.c
> +++ b/net/bridge/br_multicast.c
> @@ -1435,7 +1435,7 @@ static int br_multicast_ipv6_rcv(struct net_bridge
*br,
>  	struct icmp6hdr *icmp6h;
>  	u8 nexthdr;
>  	unsigned len;
> -	unsigned offset;
> +	int offset;
>  	int err;
>  
>  	if (!pskb_may_pull(skb, sizeof(*ip6h)))
Acked-by: Stephen Hemminger <shemminger at vyatta.com>

--