From e459e8bdd40c6e8fe75ee02a6b3f4292672f82e4 Mon Sep 17 00:00:00 2001
From: Ralph Lange <ralph.lange@gmx.de>
Date: Thu, 7 Jun 2018 11:32:16 +0200
Subject: [PATCH] cas: don't spin on zero-length search requests  (fix
 lp:1743321)

---
 src/cas/generic/casDGClient.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/cas/generic/casDGClient.cc b/src/cas/generic/casDGClient.cc
index 3bb32c3e2..32a403604 100644
--- a/src/cas/generic/casDGClient.cc
+++ b/src/cas/generic/casDGClient.cc
@@ -646,6 +646,11 @@ caStatus casDGClient::processDG ()
         if ( status != S_cas_success ) {
             break;
         }
+
+        if ( this->in.bytesPresent () > 0 && dgInBytesConsumed == 0 && status == S_cas_success ) {
+            this->in.removeMsg ( this->in.bytesPresent() );
+        }
+
     }
     return status;
 }