From f88bd3cbfaa62914adff9076f5d2fd64c08509a7 Mon Sep 17 00:00:00 2001
From: dima <yudind@gmail.com>
Date: Sat, 24 Feb 2024 16:13:47 +0300
Subject: [PATCH] check $lineno valid

---
 find-file-doc-comments.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/find-file-doc-comments.pl b/find-file-doc-comments.pl
index e14028f3..f57cb8a7 100755
--- a/find-file-doc-comments.pl
+++ b/find-file-doc-comments.pl
@@ -131,7 +131,7 @@ sub main {
 
         # Is it actually a header for this function?
         say "  Checking line $lineno for header" if $VERBOSE;
-        next unless $source_lines[$lineno] =~ $this_doc_comment_header;
+        next unless $lineno > 0 && $source_lines[$lineno] =~ $this_doc_comment_header;
 
         # We have found a header.  Confirm it's a doc comment.
         --$lineno;