Merge branch 'V5-5-patches' into V5-6-patches

* V5-5-patches:
  If the asp lookup returns NULL, don't try to use it
diff --git a/agent/mibgroup/agent/nsTransactionTable.c b/agent/mibgroup/agent/nsTransactionTable.c
index 49cb079..dc1f7fa 100644
--- a/agent/mibgroup/agent/nsTransactionTable.c
+++ b/agent/mibgroup/agent/nsTransactionTable.c
@@ -191,6 +191,7 @@
         if (asp == NULL) {
             netsnmp_set_request_error(reqinfo, requests,
                                       SNMP_NOSUCHINSTANCE);
+            continue;
         }
 
         /*