From f2ec6777bd530f949c235d7f0386286314a2f601 Mon Sep 17 00:00:00 2001
From: Robert Morris <rtm@csail.mit.edu>
Date: Thu, 13 Aug 2020 14:10:58 -0400
Subject: fix a bug in the out-of-memory handling code in exec

---
 kernel/vm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'kernel/vm.c')

diff --git a/kernel/vm.c b/kernel/vm.c
index 2f3789f..bccb405 100644
--- a/kernel/vm.c
+++ b/kernel/vm.c
@@ -235,8 +235,7 @@ uvmalloc(pagetable_t pagetable, uint64 oldsz, uint64 newsz)
     return oldsz;
 
   oldsz = PGROUNDUP(oldsz);
-  a = oldsz;
-  for(; a < newsz; a += PGSIZE){
+  for(a = oldsz; a < newsz; a += PGSIZE){
     mem = kalloc();
     if(mem == 0){
       uvmdealloc(pagetable, a, oldsz);
-- 
cgit v1.2.3