From ae01a6b5f2c7236ee8b6ba4b2b14c33e3e17fddb Mon Sep 17 00:00:00 2001
From: AnHardt <github@kitelab.de>
Date: Thu, 19 Mar 2015 09:45:16 +0100
Subject: [PATCH] Make use of codepos.

Saves one addition.
Needs one pointer on the stack.

Don't know if this is a go trade.
---
 Marlin/Marlin_main.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp
index e5e548c526..5527cebb61 100644
--- a/Marlin/Marlin_main.cpp
+++ b/Marlin/Marlin_main.cpp
@@ -2564,14 +2564,14 @@ inline void gcode_M17() {
    * M28: Start SD Write
    */
   inline void gcode_M28() {
-//    char* codepos = strchr_pointer + 4; // ??? not used ???
-    char* starpos = strchr(strchr_pointer + 4, '*');
+    char* codepos = strchr_pointer + 4;
+    char* starpos = strchr(codepos, '*');
     if (starpos) {
       char* npos = strchr(cmdbuffer[bufindr], 'N');
       strchr_pointer = strchr(npos, ' ') + 1;
       *(starpos) = '\0';
     }
-    card.openFile(strchr_pointer + 4, false);
+    card.openFile(codepos, false);
   }
 
   /**