From af0f38c5df8522d2f67edf6edcdab83572f58c8d Mon Sep 17 00:00:00 2001
From: Zachary Amsden <zamsden@redhat.com>
Date: Thu, 30 Jul 2009 00:15:00 -1000
Subject: [PATCH] Don't segfault when changing VNC password on an SDL display.

Signed-off-by: Zachary Amsden <zamsden@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
 vnc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/vnc.c b/vnc.c
index a50ee0c1ef5..d79dfd9a3a4 100644
--- a/vnc.c
+++ b/vnc.c
@@ -2182,6 +2182,10 @@ int vnc_display_password(DisplayState *ds, const char *password)
 {
     VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display;
 
+    if (!vs) {
+        return -1;
+    }
+
     if (vs->password) {
         qemu_free(vs->password);
         vs->password = NULL;
-- 
2.39.5