1 files changed, 3 insertions, 1 deletions

diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index 38a2d20b89de..f326a6f301cc 100644
--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -372,7 +372,9 @@ int kvm_ioapic_init(struct kvm *kvm)
         kvm_ioapic_reset(ioapic);
         kvm_iodevice_init(&ioapic->dev, &ioapic_mmio_ops);
         ioapic->kvm = kvm;
-        ret = kvm_io_bus_register_dev(kvm, &kvm->mmio_bus, &ioapic->dev);
+        down_write(&kvm->slots_lock);
+        ret = kvm_io_bus_register_dev(kvm, KVM_MMIO_BUS, &ioapic->dev);
+        up_write(&kvm->slots_lock);
         if (ret < 0)
                 kfree(ioapic);