fix crash when cancell map downloding

diff --git a/src/game/g_net.pas b/src/game/g_net.pas
index 74de6ec26d76f08cd8004763828bfd4550709018..6388eebbb6400aff322b7caebd36638f427986e9 100644 (file)
--- a/src/game/g_net.pas
+++ b/src/game/g_net.pas
@@ -1844,7 +1844,7 @@ end;
 function g_Net_Client_Update(): enet_size_t;
 begin
   Result := 0;
-  while (enet_host_service(NetHost, @NetEvent, 0) > 0) do
+  while (NetHost <> nil) and (enet_host_service(NetHost, @NetEvent, 0) > 0) do
   begin
     case NetEvent.kind of
       ENET_EVENT_TYPE_RECEIVE: