diff --git a/linux/devices/ploc/PlocSupvUartMan.cpp b/linux/devices/ploc/PlocSupvUartMan.cpp
index 19dd25e0..0833cd67 100644
--- a/linux/devices/ploc/PlocSupvUartMan.cpp
+++ b/linux/devices/ploc/PlocSupvUartMan.cpp
@@ -1059,6 +1059,9 @@ ReturnValue_t PlocSupvUartManager::parseRecRingBufForHdlc(size_t& readSize, size
         } else if (retval == 1) {
           triggerEvent(HDLC_CRC_ERROR);
         }
+        if (retval != 0) {
+          return HDLC_ERROR;
+        }
         return returnvalue::OK;
       } else {
         readSize = ++idx;