[gnome-remote-desktop] session-vnc: Do not crash, when password is not set

[Jonas Ådahl <jadahl src gnome org>]

commit cd95260798a2968884e29e9b22a846781dcce0b6
Author: Pascal Nowack <Pascal Nowack gmx de>
Date:   Tue Aug 2 06:27:12 2022 +0200

    session-vnc: Do not crash, when password is not set

 src/grd-session-vnc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/src/grd-session-vnc.c b/src/grd-session-vnc.c
index ed4a4289..d3107060 100644
--- a/src/grd-session-vnc.c
+++ b/src/grd-session-vnc.c
@@ -557,7 +557,11 @@ check_rfb_password (rfbClientPtr  rfb_client,
   password = grd_settings_get_vnc_password (settings, &error);
   if (!password)
     {
-      g_warning ("Couldn't retrieve VNC password: %s", error->message);
+      if (error)
+        g_warning ("[VNC] Couldn't retrieve VNC password: %s", error->message);
+      else
+        g_message ("[VNC] Password is not set, denying client");
+
       return FALSE;
     }