set free'd pointer to NULL

2015-02-25 23:17:08 +01:00 · 2015-02-25 23:17:08 +01:00 · 7ae293d566
parent 2cfb86b5b5
commit 7ae293d566
1 changed files with 7 additions and 4 deletions
--- a/app/modules/u8g.c
+++ b/app/modules/u8g.c
@ -1002,7 +1002,10 @@ static int lu8g_close_display( lua_State *L )

    // free up allocated page buffer
    if (lud->pb.buf != NULL)
+    {
        c_free( lud->pb.buf );
+        lud->pb.buf = NULL;
+    }

    return 0;
 }