From e0eb8b8a24499f01ee53374eb97f09d215436f53 Mon Sep 17 00:00:00 2001
From: gudnimg <gudni.m.g@gmail.com>
Date: Sun, 1 Oct 2023 14:39:50 +0000
Subject: [PATCH] optimisation: if SD card fails to mount, do not set root
 directory

I noticed this on Marlin 2.1 side, it should apply here as well.
---
 Firmware/cardreader.cpp | 18 +++---------------
 1 file changed, 3 insertions(+), 15 deletions(-)

diff --git a/Firmware/cardreader.cpp b/Firmware/cardreader.cpp
index fb7bbc1a2..5c501a219 100644
--- a/Firmware/cardreader.cpp
+++ b/Firmware/cardreader.cpp
@@ -230,29 +230,17 @@ void CardReader::initsd(bool doPresort/* = true*/)
     SERIAL_ECHO_START;
     SERIAL_ECHOLNRPGM(_n("SD card ok"));////MSG_SD_CARD_OK
   }
-  workDir=root;
-  curDir=&root;
-  workDirDepth = 0;
 
-  #ifdef SDCARD_SORT_ALPHA
-  if (doPresort)
-    presort();
-  #endif
-
-  /*
-  if(!workDir.openRoot(&volume))
+  if (cardOK)
   {
-    SERIAL_ECHOLNPGM(MSG_SD_WORKDIR_FAIL);
+    setroot(doPresort);
   }
-  */
-  
 }
 
-void CardReader::setroot(bool doPresort)
+void __attribute__((noinline)) CardReader::setroot(bool doPresort)
 {
   workDir=root;
   workDirDepth = 0;
-  
   curDir=&workDir;
 #ifdef SDCARD_SORT_ALPHA
 	if (doPresort)