X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/putty/blobdiff_plain/7e78000d8966255e919e3d8753fd784f4559ee55..4facdf84a26380cb8856940bcfdbd036faed6c23:/x11fwd.c

diff --git a/x11fwd.c b/x11fwd.c
index 8ace77d5..2b4a6bc5 100644
--- a/x11fwd.c
+++ b/x11fwd.c
@@ -189,7 +189,10 @@ char *x11_init (Socket *s, char *display, void *c) {
 }
 
 void x11_close (Socket s) {
-    struct X11Private *pr = (struct X11Private *)sk_get_private_ptr(s);
+    struct X11Private *pr;
+	if (!s)
+		return;
+	pr = (struct X11Private *)sk_get_private_ptr(s);
 
     if (pr->auth_protocol) {
         sfree(pr->auth_protocol);