From 3f3b3ccbb328da8c264c1e573b3fbd308eb753be Mon Sep 17 00:00:00 2001 From: Keir Fraser Date: Mon, 9 Nov 2009 20:05:43 +0000 Subject: [PATCH] e820: fix e820_change_range_type() In below case, e820_change_range_type() will return success: [s, e] is in the middle of [rs, re] and e820->nr_map+1 >= ARRAY_SIZE(e820->map) actually, it's failed, so this patch fix it Signed-off-by: Xiao Guangrong --- xen/arch/x86/e820.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/xen/arch/x86/e820.c b/xen/arch/x86/e820.c index 5dfb3f3c41..eac051fad8 100644 --- a/xen/arch/x86/e820.c +++ b/xen/arch/x86/e820.c @@ -574,7 +574,7 @@ int __init e820_change_range_type( e820->map[i+1].type = new_type; } } - else if ( e820->nr_map+1 < ARRAY_SIZE(e820->map) ) + else { if ( (e820->nr_map + 2) > ARRAY_SIZE(e820->map) ) goto overflow; -- 2.30.2