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Quickly plug another regression from r353292. Again, multicast locking needs

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lots of work...

Reported by:	pho
This commit is contained in:
glebius 2019-10-08 16:59:17 +00:00
parent 32a0d5bbd1
commit 1c64917ffa
1 changed files with 4 additions and 2 deletions
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6
sys/netinet/in_mcast.c
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@ -2195,12 +2195,14 @@ inp_join_group(struct inpcb *inp, struct sockopt *sopt)
* Begin state merge transaction at IGMP layer.
*/
if (is_new) {
struct epoch_tracker et;
in_pcbref(inp);
INP_WUNLOCK(inp);
NET_EPOCH_ENTER(et);
error = in_joingroup_locked(ifp, &gsa->sin.sin_addr, imf,
&imf->imf_inm);
NET_EPOCH_EXIT(et);
INP_WLOCK(inp);
if (in_pcbrele_wlocked(inp)) {
error = ENXIO;