fix for a bug that causes a panic in the udp_pcblist() sysctl

[Maxime Henrion]

        Hi all,


I just fixed a bug that has been hitting me everytime I do a sysctl -a
since inp locking was committed.  I would like to commit it as soon as
possible, so I'd like it if someone could review it.

Thanks,
Maxime

Index: udp_usrreq.c
===================================================================
RCS file: /space2/ncvs/src/sys/netinet/udp_usrreq.c,v
retrieving revision 1.113
diff -u -p -r1.113 udp_usrreq.c
--- udp_usrreq.c        14 Jun 2002 08:35:14 -0000      1.113
+++ udp_usrreq.c        21 Jun 2002 13:31:27 -0000
@@ -617,8 +617,10 @@ udp_pcblist(SYSCTL_HANDLER_ARGS)
                INP_LOCK(inp);
                if (inp->inp_gencnt <= gencnt) {
                        if (cr_canseesocket(req->td->td_ucred,
-                           inp->inp_socket))
+                           inp->inp_socket)) {
+                               INP_UNLOCK(inp);
                                continue;
+                       }
                        inp_list[i++] = inp;
                }
                INP_UNLOCK(inp);