From 6b4d22565ef3059e4fd6e1b88408b6a18bf59ad6 Mon Sep 17 00:00:00 2001
From: Fabian Greffrath <fabian@greffrath.com>
Date: Tue, 29 Oct 2024 09:29:53 +0100
Subject: [PATCH] return early out of R_StoreWallRange() if a line has no
 linedef

Only possible with XGLN/ZGLN nodes. Silence a buch of clang-tidy warnings.
---
 src/r_segs.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/r_segs.c b/src/r_segs.c
index 9f2e809a..42a2481f 100644
--- a/src/r_segs.c
+++ b/src/r_segs.c
@@ -539,9 +539,11 @@ void R_StoreWallRange(const int start, const int stop)
   sidedef = curline->sidedef;
   linedef = curline->linedef;
 
+  if (!linedef)
+    return;
+
   // mark the segment as visible for auto map
-  if (linedef)
-    linedef->flags |= ML_MAPPED;
+  linedef->flags |= ML_MAPPED;
 
   // [FG] update automap while playing
   if (automap_on)