- prepared for release 1.1

src/iec61850/server/mms_mapping/mms_mapping.c

@@ -1993,12 +1993,16 @@ mmsWriteHandler(void* parameter, MmsDomain* domain,
     FunctionalConstraint fc = getFunctionalConstraintForWritableNode(self, separator);
 
 #if (CONFIG_IEC61850_SETTING_GROUPS == 1)
-	if (fc == IEC61850_FC_SE) {
+     if (fc == IEC61850_FC_SE) {
-		SettingGroup* sg = getSettingGroupByMmsDomain(self, domain);
+         SettingGroup* sg = getSettingGroupByMmsDomain(self, domain);
 
-		if (sg->editingClient != (ClientConnection) connection)
+         if (sg != NULL) {
-		    return DATA_ACCESS_ERROR_TEMPORARILY_UNAVAILABLE;
+             if (sg->editingClient != (ClientConnection) connection)
-	}
+                 return DATA_ACCESS_ERROR_TEMPORARILY_UNAVAILABLE;
+         }
+         else
+             return DATA_ACCESS_ERROR_OBJECT_NONE_EXISTENT;
+    }
 #endif /* (CONFIG_IEC61850_SETTING_GROUPS == 1) */
 
     /* writable data model elements - SP, SV, CF, DC */