diff --git a/sys/amd64/vmm/vmm_dev.c b/sys/amd64/vmm/vmm_dev.c
--- a/sys/amd64/vmm/vmm_dev.c
+++ b/sys/amd64/vmm/vmm_dev.c
@@ -187,6 +187,7 @@
 	int error;
 	uint16_t i, j, maxcpus;
 
+	error = 0;
 	vm_slock_vcpus(sc->vm);
 	maxcpus = vm_get_maxcpus(sc->vm);
 	for (i = 0; i < maxcpus; i++) {