From 3ccd66d54623985fc13b7fe47b457c364a07e069 Mon Sep 17 00:00:00 2001
From: Mark Pizzolato <mark@infocomm.com>
Date: Tue, 20 Mar 2012 11:16:00 -0700
Subject: [PATCH] Cleanup potential fault in eth_close if eth_close is called
 with a NULL argument.

---
 sim_ether.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sim_ether.c b/sim_ether.c
index 78cf7fc4..0b4dcfec 100644
--- a/sim_ether.c
+++ b/sim_ether.c
@@ -1713,12 +1713,13 @@ t_stat eth_close(ETH_DEV* dev)
 {
 char* msg = "Eth: closed %s\r\n";
 pcap_t *pcap;
-int pcap_fd = dev->fd_handle;
+int pcap_fd;
 
 /* make sure device exists */
 if (!dev) return SCPE_UNATT;
 
 /* close the device */
+pcap_fd = dev->fd_handle;                   /* save handle to possibly close later */
 pcap = (pcap_t *)dev->handle;
 dev->handle = NULL;
 dev->fd_handle = 0;