From 641916881322a2dee5b120d509a3bdd05a502510 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Thu, 30 Aug 2007 23:56:17 -0700
Subject: [PATCH] process_zones(): fix recovery code

Don't try to free memory which we didn't allocate.

Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/page_alloc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 6427653023aa..1a8c59571cb7 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2345,6 +2345,8 @@ static int __cpuinit process_zones(int cpu)
 	return 0;
 bad:
 	for_each_zone(dzone) {
+		if (!populated_zone(dzone))
+			continue;
 		if (dzone == zone)
 			break;
 		kfree(zone_pcp(dzone, cpu));
-- 
2.30.2