tipc: fix memory leak of publications

Commit 1bb8dce ("tipc: fix memory
leak during module removal") introduced a memory leak issue: when
name table is stopped, it's forgotten that publication instances are
freed properly. Additionally the useless "continue" statement in
tipc_nametbl_stop() is removed as well.

Reported-by: Jason <huzhijiang@gmail.com>
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Acked-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/tipc/name_table.c

@@ -969,6 +969,7 @@ static void tipc_purge_publications(struct name_seq *seq)
 	list_for_each_entry_safe(publ, safe, &info->zone_list, zone_list) {
 		tipc_nametbl_remove_publ(publ->type, publ->lower, publ->node,
 					 publ->ref, publ->key);
+		kfree(publ);
 	}
 }
 
@@ -990,7 +991,6 @@ void tipc_nametbl_stop(void)
 		hlist_for_each_entry_safe(seq, safe, seq_head, ns_list) {
 			tipc_purge_publications(seq);
 		}
-		continue;
 	}
 	kfree(table.types);
 	table.types = NULL;