File 0479-code-Stop-looking-for-docs-when-we-reach-root-dir.patch of Package erlang

From 63bd7ab82ffcecab21d5cc4e52cca87fbc4c8c39 Mon Sep 17 00:00:00 2001
From: Lukas Larsson <lukas@erlang.org>
Date: Fri, 9 Sep 2022 12:57:00 +0200
Subject: [PATCH 1/2] code: Stop looking for docs when we reach root dir

---
 lib/kernel/src/code.erl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/kernel/src/code.erl b/lib/kernel/src/code.erl
index 001f3ac981..a178958397 100644
--- a/lib/kernel/src/code.erl
+++ b/lib/kernel/src/code.erl
@@ -885,9 +885,12 @@ get_doc_chunk(Filename, Mod) when is_atom(Mod) ->
             {ok,binary_to_term(Bin)}
     end;
 get_doc_chunk(Filename, Mod) ->
+    RootDir = code:root_dir(),
     case filename:dirname(Filename) of
         Filename ->
             {error,missing};
+        RootDir ->
+            {error,missing};
         Dir ->
             ChunkFile = filename:join([Dir,"doc","chunks",Mod ++ ".chunk"]),
             case file:read_file(ChunkFile) of
-- 
2.35.3