X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/edcbf00a807b86ea83cca4fa98e854790c4b4a04..f3ab576e6a5f34dfedde93fe236d1eac577628d0:/ssh.c

diff --git a/ssh.c b/ssh.c
index 45354884..e2c2d737 100644
--- a/ssh.c
+++ b/ssh.c
@@ -1478,8 +1478,10 @@ static int ssh_closing(Plug plug, char *error_msg, int error_code,
 		       int calling_back)
 {
     ssh_state = SSH_STATE_CLOSED;
-    sk_close(s);
-    s = NULL;
+    if (s) {
+        sk_close(s);
+        s = NULL;
+    }
     if (error_msg) {
 	/* A socket error has occurred. */
 	connection_fatal(error_msg);