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-rw-r--r--gtk/gtklayout.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/gtk/gtklayout.c b/gtk/gtklayout.c
index e56b3eeea7..6e7181bc37 100644
--- a/gtk/gtklayout.c
+++ b/gtk/gtklayout.c
@@ -203,6 +203,8 @@ gtk_layout_put (GtkLayout *layout,
g_return_if_fail (layout != NULL);
g_return_if_fail (GTK_IS_LAYOUT (layout));
+ g_return_if_fail (child_widget != NULL);
+ g_return_if_fail (GTK_IS_WIDGET (child_widget));
child = g_new (GtkLayoutChild, 1);