Remove possible devision by zero (coverity fix)

diff --git a/pdns/ws.cc b/pdns/ws.cc
index 36e43147f408744b711e5cff3318a8eb00422639..994223869816c4d2607e252743355be88d83e777 100644 (file)
--- a/pdns/ws.cc
+++ b/pdns/ws.cc
@@ -93,9 +93,13 @@ void *StatWebServer::threadHelper(void *p)
 
 void printtable(ostringstream &ret, const string &ringname, const string &title, int limit=10)
 {
+  vector<pair <string,unsigned int> >ring=S.getRing(ringname);
+  if (ring.size() == 0) {
+    return;
+  }
+
   int tot=0;
   int entries=0;
-  vector<pair <string,unsigned int> >ring=S.getRing(ringname);
 
   for(vector<pair<string, unsigned int> >::const_iterator i=ring.begin(); i!=ring.end();++i) {
     tot+=i->second;