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-rw-r--r--virt/kvm/coalesced_mmio.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/virt/kvm/coalesced_mmio.c b/virt/kvm/coalesced_mmio.c
index d68e6c68e0ff..a736a93ca7b7 100644
--- a/virt/kvm/coalesced_mmio.c
+++ b/virt/kvm/coalesced_mmio.c
@@ -110,7 +110,9 @@ int kvm_coalesced_mmio_init(struct kvm *kvm)
dev->kvm = kvm;
kvm->coalesced_mmio_dev = dev;
- ret = kvm_io_bus_register_dev(kvm, &kvm->mmio_bus, &dev->dev);
+ down_write(&kvm->slots_lock);
+ ret = kvm_io_bus_register_dev(kvm, KVM_MMIO_BUS, &dev->dev);
+ up_write(&kvm->slots_lock);
if (ret < 0)
goto out_free_dev;