KVM: convert io_bus to SRCU

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
index d057c0cbd24..b7d145b2095 100644
--- a/arch/x86/kvm/i8259.c
+++ b/arch/x86/kvm/i8259.c
@@ -533,7 +533,9 @@ struct kvm_pic *kvm_create_pic(struct kvm *kvm)
          * Initialize PIO device
          */
         kvm_iodevice_init(&s->dev, &picdev_ops);
-        ret = kvm_io_bus_register_dev(kvm, &kvm->pio_bus, &s->dev);
+        down_write(&kvm->slots_lock);
+        ret = kvm_io_bus_register_dev(kvm, KVM_PIO_BUS, &s->dev);
+        up_write(&kvm->slots_lock);
         if (ret < 0) {
                 kfree(s);
                 return NULL;