From c91e681a558fc21073ffc491b5a022d5f340fa0b Mon Sep 17 00:00:00 2001
From: Orit Wasserman <owasserm@redhat.com>
Date: Thu, 30 Jan 2014 20:08:34 +0200
Subject: Add check for cache size smaller than page size

Signed-off-by: Orit Wasserman <owasserm@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
 arch_init.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'arch_init.c')

diff --git a/arch_init.c b/arch_init.c
index 66f5e82263..8edeabee4c 100644
--- a/arch_init.c
+++ b/arch_init.c
@@ -178,6 +178,10 @@ static struct {
 
 int64_t xbzrle_cache_resize(int64_t new_size)
 {
+    if (new_size < TARGET_PAGE_SIZE) {
+        return -1;
+    }
+
     if (XBZRLE.cache != NULL) {
         return cache_resize(XBZRLE.cache, new_size / TARGET_PAGE_SIZE) *
             TARGET_PAGE_SIZE;
-- 
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