Update pdns/syncres.cc

Co-Authored-By: pieterlexis <pieterlexis@users.noreply.github.com>

diff --git a/pdns/syncres.cc b/pdns/syncres.cc
index db3dd5512b4662ad6ee37caa079916a57e859c48..e7002c20f7a0476681a78b76694e831b2a8999dc 100644 (file)
--- a/pdns/syncres.cc
+++ b/pdns/syncres.cc
@@ -1043,7 +1043,7 @@ bool SyncRes::doCNAMECacheCheck(const DNSName &qname, const QType &qtype, vector
           if (dnameRR == nullptr) {
             throw ImmediateServFailException("Unable to get record content for "+foundName.toLogString()+"|DNAME cache entry");
           }
-          auto dnameSuffix = dnameRR->getTarget();
+          const auto& dnameSuffix = dnameRR->getTarget();
           DNSName targetPrefix = qname.makeRelative(foundName);
           try {
             dr.d_type = QType::CNAME;