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>

1 files changed, 2 insertions, 0 deletions

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));