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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>