From f9856d547f8a310158c9dbf1b61fa28d01d0600a 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 14eefe4c83..a0394a3fb1 100644
--- a/gsk/gskrendernodeimpl.c
+++ b/gsk/gskrendernodeimpl.c
@@ -6998,7 +6998,7 @@ 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);