Miscellaneous changes split from https://codereview.webrtc.org/1230503003 .

webrtc/modules/audio_coding/codecs/isac/main/test/simpleKenny.c

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 332 matching lines @@
           getc(stdin);
           exit(EXIT_FAILURE);
         }
       }
       //===================================================================
       if (endfile) {
         break;
       }
 
       rcuStreamLen = WebRtcIsac_GetRedPayload(ISAC_main_inst, payloadRCU);
+      if (rcuStreamLen < 0) {
+        fprintf(stderr, "\nError getting RED payload\n");
+        getc(stdin);
+        exit(EXIT_FAILURE);
+      }
 
       get_arrival_time(cur_framesmpls, stream_len, bottleneck, &packetData,
                        sampFreqKHz * 1000, sampFreqKHz * 1000);
       if (WebRtcIsac_UpdateBwEstimate(
               ISAC_main_inst, payload, stream_len, packetData.rtp_number,
               packetData.sample_count, packetData.arrival_time) < 0) {
         printf(" BWE Error at client\n");
         return -1;
       }
     }
@@ skipping 199 matching lines @@
   str->lastArrivalTime = 0;
 
   str->maxPayloadLB = 0;
   str->maxPayloadUB = 0;
   str->lbBytes = 0;
   str->ubBytes = 0;
 
   return 0;
 };
 #endif