KVM: Take missing slots_lock for kvm_io_bus_unregister_dev()
In KVM_CREATE_IRQCHIP, kvm_io_bus_unregister_dev() is called without taking
slots_lock in the error handling path.
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 48a48bd..70d224d 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -951,7 +951,9 @@
goto out;
r = kvm_setup_default_irq_routing(kvm);
if (r) {
+ mutex_lock(&kvm->slots_lock);
kvm_ioapic_destroy(kvm);
+ mutex_unlock(&kvm->slots_lock);
goto out;
}
break;