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Commit a05d1c0d authored by Marc Zyngier's avatar Marc Zyngier Committed by Christoffer Dall
Browse files

KVM: arm/arm64: vgic-v4: Only perform an unmap for valid vLPIs 



Before performing an unmap, let's check that what we have was
really mapped the first place.

Reviewed-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
parent 686f294f

virt/kvm/arm/vgic/vgic-v4.c

+4 −2
Original line number Diff line number Diff line
@@ -337,8 +337,10 @@ int kvm_vgic_v4_unset_forwarding(struct kvm *kvm, int virq, 
		goto out;



	WARN_ON(!(irq->hw && irq->host_irq == virq));

	if (irq->hw) {

		irq->hw = false;

		ret = its_unmap_vlpi(virq);

	}



out:

	mutex_unlock(&its->its_lock);