linux-imx

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: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>