From 0043f20866306c2843ba2f591c5a5875a913cc79 Mon Sep 17 00:00:00 2001
From: Martin Owens <doctormo@geek-2.com>
Date: Wed, 2 Apr 2025 11:26:41 -0400
Subject: [PATCH] Filter editor PrimitiveList result check

Check the result is found before trying to use it

Fixes https://gitlab.com/inkscape/inkscape/-/issues/5569
---
 src/ui/dialog/filter-effects-dialog.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ui/dialog/filter-effects-dialog.cpp b/src/ui/dialog/filter-effects-dialog.cpp
index 60e72f6276..b7205a70c7 100644
--- a/src/ui/dialog/filter-effects-dialog.cpp
+++ b/src/ui/dialog/filter-effects-dialog.cpp
@@ -2063,7 +2063,7 @@ void FilterEffectsDialog::PrimitiveList::draw_connection(const Cairo::RefPtr<Cai
         arc_radius = 6;
     }
 
-    if(res == input || (use_default && is_first)) {
+    if((res && res == input) || (use_default && is_first)) {
         // Draw straight connection to a standard input
         // Draw a lighter line for an implicit connection to a standard input
         const int tw = get_input_type_width();
-- 
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