KVM: arm/arm64: vgic: Add missing irq_lock to vgic_mmio_read_pending

[linux-2.6-block.git] / virt / kvm / arm / vgic / vgic-mmio.c

diff --git a/virt/kvm/arm/vgic/vgic-mmio.c b/virt/kvm/arm/vgic/vgic-mmio.c
index 83d82bd7dc4e714f61669e6aaf9e937b67f5eea1..dbe99d635c80435ffd938999c4246ce6f45307c7 100644 (file)
--- a/virt/kvm/arm/vgic/vgic-mmio.c
+++ b/virt/kvm/arm/vgic/vgic-mmio.c
@@ -113,9 +113,12 @@ unsigned long vgic_mmio_read_pending(struct kvm_vcpu *vcpu,
        /* Loop over all IRQs affected by this read */
        for (i = 0; i < len * 8; i++) {
                struct vgic_irq *irq = vgic_get_irq(vcpu->kvm, vcpu, intid + i);
+               unsigned long flags;
 
+               spin_lock_irqsave(&irq->irq_lock, flags);
                if (irq_is_pending(irq))
                        value |= (1U << i);
+               spin_unlock_irqrestore(&irq->irq_lock, flags);
 
                vgic_put_irq(vcpu->kvm, irq);
        }