1 files changed, 2 insertions, 0 deletions

diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index 64ee720b75c7..1550637d1b10 100644
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -753,6 +753,7 @@ kvm_assign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
         if (ret < 0)
                 goto unlock_fail;
 
+        kvm->buses[bus_idx]->ioeventfd_count++;
         list_add_tail(&p->list, &kvm->ioeventfds);
 
         mutex_unlock(&kvm->slots_lock);
@@ -798,6 +799,7 @@ kvm_deassign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
                         continue;
 
                 kvm_io_bus_unregister_dev(kvm, bus_idx, &p->dev);
+                kvm->buses[bus_idx]->ioeventfd_count--;
                 ioeventfd_release(p);
                 ret = 0;
                 break;