Index: mapogcsos.c
===================================================================
--- mapogcsos.c (revision 7091)
+++ mapogcsos.c (working copy)
@@ -64,6 +64,7 @@
 
 void msSOSParseRequest(cgiRequestObj *request, sosParamsObj *sosparams);
 void msSOSFreeParamsObj(sosParamsObj *sosparams);
+sosParamsObj *msSOSCreateParamsObj();
 
 /*
 ** msSOSException()
@@ -2474,8 +2475,12 @@
 int msSOSDispatch(mapObj *map, cgiRequestObj *req) {
 #ifdef USE_SOS_SVR
   int returnvalue = MS_DONE;
-  sosParamsObj *paramsObj = (sosParamsObj *)calloc(1, sizeof(sosParamsObj));
+  sosParamsObj *paramsObj;
 
+  //sosParamsObj *paramsObj = (sosParamsObj *)calloc(1, sizeof(sosParamsObj));
+
+  paramsObj = msSOSCreateParamsObj();
+
   msSOSParseRequest(req, paramsObj);
 
   /* SERVICE must be specified and be SOS */
@@ -2752,6 +2757,30 @@
   return;
 }
 
+sosParamsObj *msSOSCreateParamsObj() {
+  sosParamsObj *paramsObj = (sosParamsObj *)calloc(1, sizeof(sosParamsObj));
+
+  if (paramsObj) {
+    paramsObj->pszVersion=NULL;
+    paramsObj->pszUpdateSequence=NULL;
+    paramsObj->pszRequest=NULL;
+    paramsObj->pszOutputFormat=NULL;
+    paramsObj->pszSensorId=NULL;
+    paramsObj->pszProcedure=NULL;
+    paramsObj->pszOffering=NULL;
+    paramsObj->pszObservedProperty=NULL;
+    paramsObj->pszEventTime=NULL;
+    paramsObj->pszResult=NULL;
+    paramsObj->pszResponseFormat=NULL;
+    paramsObj->pszResultModel=NULL;
+    paramsObj->pszResponseMode=NULL;
+    paramsObj->pszSrsName=NULL;
+    paramsObj->pszFeatureOfInterest=NULL;
+  }
+
+  return paramsObj;
+}
+
 void msSOSFreeParamsObj(sosParamsObj *sosparams) {
   if (sosparams) {
     if (sosparams->pszVersion)
@@ -2770,7 +2799,7 @@
       free(sosparams->pszOffering);
     if (sosparams->pszObservedProperty)
       free(sosparams->pszObservedProperty);
-    if (sosparams->pszEventTime);
+    if (sosparams->pszEventTime)
       free(sosparams->pszEventTime);
     if (sosparams->pszResult)
       free(sosparams->pszResult);