KVM: check injected pic irq within valid pic irqs

[linux-2.6-omap-h63xx.git] / arch / x86 / kvm / i8259.c

diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
index 5857f59ad4aac7e0d90b6235fcd65bdd41b26205..c31164e8aa46c498643b9fa953df3920d598a1d3 100644 (file)
--- a/arch/x86/kvm/i8259.c
+++ b/arch/x86/kvm/i8259.c
@@ -130,8 +130,10 @@ void kvm_pic_set_irq(void *opaque, int irq, int level)
 {
        struct kvm_pic *s = opaque;
 
-       pic_set_irq1(&s->pics[irq >> 3], irq & 7, level);
-       pic_update_irq(s);
+       if (irq >= 0 && irq < PIC_NUM_PINS) {
+               pic_set_irq1(&s->pics[irq >> 3], irq & 7, level);
+               pic_update_irq(s);
+       }
 }
 
 /*