[Xen-changelog] [xen-unstable] x86: fix an off-by-one pirq range check

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1277917869 -3600
# Node ID 81d6471ff1235fde2c30428b920cb6e00ba546d6
# Parent  a9caa0f2d693a1d0d008b4295e49da3ea1d70334
x86: fix an off-by-one pirq range check

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>
---
 xen/arch/x86/irq.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -r a9caa0f2d693 -r 81d6471ff123 xen/arch/x86/irq.c
--- a/xen/arch/x86/irq.c        Wed Jun 30 18:09:16 2010 +0100
+++ b/xen/arch/x86/irq.c        Wed Jun 30 18:11:09 2010 +0100
@@ -1027,7 +1027,7 @@ static void __pirq_guest_eoi(struct doma
 
 int pirq_guest_eoi(struct domain *d, int irq)
 {
-    if ( (irq < 0) || (irq > d->nr_pirqs) )
+    if ( (irq < 0) || (irq >= d->nr_pirqs) )
         return -EINVAL;
 
     __pirq_guest_eoi(d, irq);

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