A2065 Cable not connected crash fix.

diff --git a/ethernet.cpp b/ethernet.cpp
index 45ec498fd848e3ba9895b7e5769de4ff4e957e43..2acf8503572d1aa232fa865ea1af69878ff16341 100644 (file)
--- a/ethernet.cpp
+++ b/ethernet.cpp
@@ -59,6 +59,8 @@ void slirp_output (const uint8 *pkt, int pkt_len)
 
 void ethernet_trigger (struct netdriverdata *ndd, void *vsd)
 {
+       if (!ndd)
+               return;
        switch (ndd->type)
        {
                case UAENET_SLIRP: