From 0992df4b90beac0447297806943ac4b6b2ced46e Mon Sep 17 00:00:00 2001
From: rsc <rsc>
Date: Wed, 6 Sep 2006 16:35:21 +0000
Subject: [PATCH] clear np->mem after freeing

---
 proc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/proc.c b/proc.c
index d90b057..3fd35d5 100644
--- a/proc.c
+++ b/proc.c
@@ -107,6 +107,7 @@ copyproc(struct proc* p)
   np->kstack = kalloc(KSTACKSIZE);
   if(np->kstack == 0){
     kfree(np->mem, np->sz);
+    np->mem = 0;
     np->state = UNUSED;
     return 0;
   }