ACPI: sysfs: remove return value of acpi_device_setup_files()

The function can not fail anymore, so drop its return value.

Signed-off-by: Thomas Weißschuh <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Rafael J. Wysocki <[e-mail]>

drivers/acpi/device_sysfs.c

···
  * acpi_device_setup_files - Create sysfs attributes of an ACPI device.
  * @dev: ACPI device object.
  */
-int acpi_device_setup_files(struct acpi_device *dev)
+void acpi_device_setup_files(struct acpi_device *dev)
 {
-	int result = 0;
-
 	acpi_expose_nondev_subnodes(&dev->dev.kobj, &dev->data);
-
-	return result;
 }
 
 /**

drivers/acpi/internal.h

···
 			     int type, void (*release)(struct device *));
 int acpi_tie_acpi_dev(struct acpi_device *adev);
 int acpi_device_add(struct acpi_device *device);
-int acpi_device_setup_files(struct acpi_device *dev);
+void acpi_device_setup_files(struct acpi_device *dev);
 void acpi_device_remove_files(struct acpi_device *dev);
 extern const struct attribute_group *acpi_groups[];
 void acpi_device_add_finalize(struct acpi_device *device);

drivers/acpi/scan.c

···
 		goto err;
 	}
 
-	result = acpi_device_setup_files(device);
-	if (result)
-		pr_err("Error creating sysfs interface for device %s\n",
-		       dev_name(&device->dev));
+	acpi_device_setup_files(device);
 
 	return 0;