From 9d8c3a7b828632619766ee763b18c46a0fd9d160 Mon Sep 17 00:00:00 2001
From: devsaurus <devsaurus@users.noreply.github.com>
Date: Wed, 5 Aug 2015 21:52:56 +0200
Subject: [PATCH] fix u8g device destructor don't free unallocated memory

---
 app/modules/u8g.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/app/modules/u8g.c b/app/modules/u8g.c
index 676f3375..24d2062b 100644
--- a/app/modules/u8g.c
+++ b/app/modules/u8g.c
@@ -6,7 +6,6 @@
 #include "auxmods.h"
 #include "lrotable.h"
 
-//#include "c_string.h"
 #include "c_stdlib.h"
 
 #include "u8g.h"
@@ -15,9 +14,7 @@
 
 struct _lu8g_userdata_t
 {
-    u8g_t     u8g;
-    u8g_pb_t  pb;
-    u8g_dev_t dev;
+    u8g_t u8g;
 };
 
 typedef struct _lu8g_userdata_t lu8g_userdata_t;
@@ -969,13 +966,6 @@ static int lu8g_close_display( lua_State *L )
     if ((lud = get_lud( L )) == NULL)
         return 0;
 
-    // free up allocated page buffer
-    if (lud->pb.buf != NULL)
-    {
-        c_free( lud->pb.buf );
-        lud->pb.buf = NULL;
-    }
-
     return 0;
 }