diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index bb7c51f..1e872e7 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -920,6 +920,9 @@
 	if (acpi_disabled)
 		return 0;
 
+	if (acpi_disabled)
+		return 0;
+
 	/* look for a dock station */
 	acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
 			    ACPI_UINT32_MAX, find_dock, &num, NULL);