Index: sys/dev/acpica/acpi_ec.c
===================================================================
--- sys/dev/acpica/acpi_ec.c
+++ sys/dev/acpica/acpi_ec.c
@@ -346,7 +346,8 @@
     static char *ec_ids[] = { "PNP0C09", NULL };
 
     /* Check that this is a device and that EC is not disabled. */
-    if (acpi_get_type(dev) != ACPI_TYPE_DEVICE || acpi_disabled("ec"))
+    if (acpi_get_type(dev) != ACPI_TYPE_DEVICE || acpi_disabled("ec") ||
+	!ACPI_ID_PROBE(device_get_parent(dev), dev, ec_ids))
 	return (ENXIO);
 
     /*
@@ -362,7 +363,7 @@
     if (params != NULL) {
 	ecdt = 1;
 	ret = 0;
-    } else if (ACPI_ID_PROBE(device_get_parent(dev), dev, ec_ids)) {
+    } else {
 	params = malloc(sizeof(struct acpi_ec_params), M_TEMP,
 			M_WAITOK | M_ZERO);
 	h = acpi_get_handle(dev);