X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/putty/blobdiff_plain/a5f3e637bc3925f7c68ab0f3895408bb70154b13..2470d64e039d7bdf87a72d70c1624ff98849e37d:/telnet.c

diff --git a/telnet.c b/telnet.c
index b00a6da0..04cbec02 100644
--- a/telnet.c
+++ b/telnet.c
@@ -565,8 +565,10 @@ static void do_telnet_read(char *buf, int len)
 static int telnet_closing(Plug plug, char *error_msg, int error_code,
 			  int calling_back)
 {
-    sk_close(s);
-    s = NULL;
+    if (s) {
+        sk_close(s);
+        s = NULL;
+    }
     if (error_msg) {
 	/* A socket error has occurred. */
 	connection_fatal(error_msg);