From 285a90e36b138b707c4a9850f2500774b7191c99 Mon Sep 17 00:00:00 2001 From: Andre Przywara Date: Fri, 17 Nov 2017 17:58:21 +0000 Subject: KVM: arm/arm64: VGIC: extend !vgic_is_initialized guard Commit f39d16cbabf9 ("KVM: arm/arm64: Guard kvm_vgic_map_is_active against !vgic_initialized") introduced a check whether the VGIC has been initialized before accessing the spinlock and the VGIC data structure. However the vgic_get_irq() call in the variable declaration sneaked through the net, so lets make sure that this also gets called only after we actually allocated the arrays this function accesses. Reviewed-by: Eric Auger Signed-off-by: Andre Przywara Signed-off-by: Christoffer Dall --- virt/kvm/arm/vgic/vgic.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'virt') diff --git a/virt/kvm/arm/vgic/vgic.c b/virt/kvm/arm/vgic/vgic.c index b168a328a9e0..786cce7bd2ec 100644 --- a/virt/kvm/arm/vgic/vgic.c +++ b/virt/kvm/arm/vgic/vgic.c @@ -823,13 +823,14 @@ void vgic_kick_vcpus(struct kvm *kvm) bool kvm_vgic_map_is_active(struct kvm_vcpu *vcpu, unsigned int vintid) { - struct vgic_irq *irq = vgic_get_irq(vcpu->kvm, vcpu, vintid); + struct vgic_irq *irq; bool map_is_active; unsigned long flags; if (!vgic_initialized(vcpu->kvm)) return false; + irq = vgic_get_irq(vcpu->kvm, vcpu, vintid); spin_lock_irqsave(&irq->irq_lock, flags); map_is_active = irq->hw && irq->active; spin_unlock_irqrestore(&irq->irq_lock, flags); -- cgit