--- zzzz-none-000/linux-2.6.39.4/drivers/acpi/glue.c	2011-08-03 19:43:28.000000000 +0000
+++ puma6-atom-6490-729/linux-2.6.39.4/drivers/acpi/glue.c	2021-11-10 13:38:14.000000000 +0000
@@ -161,7 +161,7 @@
 
 	status = acpi_bus_get_device(handle, &acpi_dev);
 	if (!ACPI_FAILURE(status)) {
-		int ret;
+		int ret __maybe_unused;
 
 		ret = sysfs_create_link(&dev->kobj, &acpi_dev->dev.kobj,
 				"firmware_node");