KVM: apic: short-circuit kvm_apic_accept_pic_intr() when pic intr is accepted

Short-circuit kvm_apic_accept_pic_intr() when pic intr is accepted, there
is no need to proceed further. Also remove unnecessary var r.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
1 file changed