Once my last patchset got applied, I got slapped by an automatic smatch and build bot. Here are two patches fixing the according issues, a potential null pointer dereference and a compile error when compiling without IPv6.
[PATCH 1/2] is probably not the ideal solution - the assignment of the group and max_delay is still a mess and has subtle differences between IGMPv2, IGMPv3, MLDv1 and MLDv2. That should probably be fixed $later. But for now, I think the easier fix might be better, restoring the behaviour before my "adhere to querier mechanism" patch and therefore keeping things bisect'able. Cheers, Linus
