1 files changed, 7 insertions, 6 deletions

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 189cbc2585fa..0338f513a010 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -4,6 +4,7 @@
 
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 #include <linux/kernel.h>
 #include <linux/acpi.h>
 #include <linux/signal.h>
@@ -1080,12 +1081,6 @@ static void acpi_device_set_id(struct acpi_device *device)
                 if (ACPI_IS_ROOT_DEVICE(device)) {
                         acpi_add_id(device, ACPI_SYSTEM_HID);
                         break;
-                } else if (ACPI_IS_ROOT_DEVICE(device->parent)) {
-                        /* \_SB_, the only root-level namespace device */
-                        acpi_add_id(device, ACPI_BUS_HID);
-                        strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME);
-                        strcpy(device->pnp.device_class, ACPI_BUS_CLASS);
-                        break;
                 }
 
                 status = acpi_get_object_info(device->handle, &info);
@@ -1120,6 +1115,12 @@ static void acpi_device_set_id(struct acpi_device *device)
                         acpi_add_id(device, ACPI_DOCK_HID);
                 else if (!acpi_ibm_smbus_match(device))
                         acpi_add_id(device, ACPI_SMBUS_IBM_HID);
+                else if (!acpi_device_hid(device) &&
+                         ACPI_IS_ROOT_DEVICE(device->parent)) {
+                        acpi_add_id(device, ACPI_BUS_HID); /* \_SB, LNXSYBUS */
+                        strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME);
+                        strcpy(device->pnp.device_class, ACPI_BUS_CLASS);
+                }
 
                 break;
         case ACPI_BUS_TYPE_POWER: