Merge branch 'V5-6-patches' into V5-7-patches

* V5-6-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 75fe7be..d7d3ce9 100644
--- a/agent/mibgroup/agent/nsTransactionTable.c
+++ b/agent/mibgroup/agent/nsTransactionTable.c
@@ -194,6 +194,7 @@
         if (asp == NULL) {
             netsnmp_set_request_error(reqinfo, requests,
                                       SNMP_NOSUCHINSTANCE);
+            continue;
         }
 
         /*