From 60adaaad34463f45234a46336e690f544b19eb01 Mon Sep 17 00:00:00 2001
From: Daniel Willmann <daniel@totalueberwachung.de>
Date: Sat, 3 Mar 2012 01:23:19 +0100
Subject: [PATCH] mmem: Prevent duplicate init of mmem

This could seriously corrupt data if mmem_init was called again after
someone called mmem_alloc.
---
 core/lib/mmem.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/core/lib/mmem.c b/core/lib/mmem.c
index a6ff1b59c..20c7390fd 100644
--- a/core/lib/mmem.c
+++ b/core/lib/mmem.c
@@ -151,8 +151,13 @@ mmem_free(struct mmem *m)
 void
 mmem_init(void)
 {
+  static int inited = 0;
+  if(inited) {
+    return;
+  }
   list_init(mmemlist);
   avail_memory = MMEM_SIZE;
+  inited = 1;
 }
 /*---------------------------------------------------------------------------*/