[ 37/61] ipv6/ip6_gre: fix error case handling in ip6gre_tunnel_xmit()

Greg Kroah-Hartman
2013-02-12T21:01:40Z

From: Tommi Rantala <tt.rantala@gmail.com>

[ Upstream commit 41ab3e31bd50b42c85ac0aa0469642866aee2a9a ]

ip6gre_tunnel_xmit() is leaking the skb when we hit this error branch,
and the -1 return value from this function is bogus. Use the error
handling we already have in place in ip6gre_tunnel_xmit() for this error
case to fix this.

Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/ipv6/ip6_gre.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -976,7 +976,7 @@ static netdev_tx_t ip6gre_tunnel_xmit(st
int ret;

if (!ip6_tnl_xmit_ctl(t))
- return -1;
+ goto tx_err;

switch (skb->protocol) {