KVM: arm/arm64: vgic: Add refcounting for IRQs

[mirror_ubuntu-zesty-kernel.git] / virt / kvm / arm / vgic / vgic-init.c

diff --git a/virt/kvm/arm/vgic/vgic-init.c b/virt/kvm/arm/vgic/vgic-init.c
index 90cae489c34cddee5d5c5580e6426c6b73aacb53..ac3c1a5f7bf4859e75f2e3672830d0e5fb8ea13a 100644 (file)
--- a/virt/kvm/arm/vgic/vgic-init.c
+++ b/virt/kvm/arm/vgic/vgic-init.c
@@ -177,6 +177,7 @@ static int kvm_vgic_dist_init(struct kvm *kvm, unsigned int nr_spis)
                spin_lock_init(&irq->irq_lock);
                irq->vcpu = NULL;
                irq->target_vcpu = vcpu0;
+               kref_init(&irq->refcount);
                if (dist->vgic_model == KVM_DEV_TYPE_ARM_VGIC_V2)
                        irq->targets = 0;
                else
@@ -211,6 +212,7 @@ static void kvm_vgic_vcpu_init(struct kvm_vcpu *vcpu)
                irq->vcpu = NULL;
                irq->target_vcpu = vcpu;
                irq->targets = 1U << vcpu->vcpu_id;
+               kref_init(&irq->refcount);
                if (vgic_irq_is_sgi(i)) {
                        /* SGIs */
                        irq->enabled = 1;