From f424b6bdf12837f77c51ffc397bc4cf3598ffe96 Mon Sep 17 00:00:00 2001
From: Matthias Clasen <mclasen@redhat.com>
Date: Tue, 2 Jul 2024 15:52:51 -0400
Subject: [PATCH] gsk: Avoid a crash

The subsurface in subsurface nodes can be NULL, so check before
poking at it.
---
 gsk/gskrendernodeimpl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gsk/gskrendernodeimpl.c b/gsk/gskrendernodeimpl.c
index 6dfe88bd39..ba7be7482b 100644
--- a/gsk/gskrendernodeimpl.c
+++ b/gsk/gskrendernodeimpl.c
@@ -6995,7 +6995,7 @@ gsk_subsurface_node_diff (GskRenderNode *node1,
       /* Shouldn't happen, can_diff() avoids this, but to be sure */
       gsk_render_node_diff_impossible (node1, node2, data);
     }
-  else if (self1->subsurface->parent != data->surface)
+  else if (self1->subsurface && self1->subsurface->parent != data->surface)
     {
       /* The inspector case */
       gsk_render_node_diff (self1->child, self2->child, data);