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-rw-r--r--daemon/gdm-display.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/daemon/gdm-display.c b/daemon/gdm-display.c
index be86f222..cb50a525 100644
--- a/daemon/gdm-display.c
+++ b/daemon/gdm-display.c
@@ -1246,6 +1246,9 @@ gdm_display_dispose (GObject *object)
g_debug ("GdmDisplay: Disposing display");
+ g_assert (display->priv->status == GDM_DISPLAY_FINISHED ||
+ display->priv->status == GDM_DISPLAY_FAILED);
+
if (display->priv->slave != NULL) {
gdm_slave_stop (display->priv->slave);
g_object_unref (display->priv->slave);