Input: aiptek - use attribute group
Use attribute group to simplify error handling and reduce code.
[Rene: add missing NULL to properly terminate aiptek_attributes]
Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/tablet/aiptek.c b/drivers/input/tablet/aiptek.c
index f9a5f87..088da86 100644
--- a/drivers/input/tablet/aiptek.c
+++ b/drivers/input/tablet/aiptek.c
@@ -1795,67 +1795,33 @@
static DEVICE_ATTR(firmware_code, S_IRUGO, show_firmwareCode, NULL);
-/***********************************************************************
- * This routine removes all existing sysfs files managed by this device
- * driver.
- */
-static void aiptek_delete_files(struct device *dev)
-{
- device_remove_file(dev, &dev_attr_size);
- device_remove_file(dev, &dev_attr_pointer_mode);
- device_remove_file(dev, &dev_attr_coordinate_mode);
- device_remove_file(dev, &dev_attr_tool_mode);
- device_remove_file(dev, &dev_attr_xtilt);
- device_remove_file(dev, &dev_attr_ytilt);
- device_remove_file(dev, &dev_attr_jitter);
- device_remove_file(dev, &dev_attr_delay);
- device_remove_file(dev, &dev_attr_event_count);
- device_remove_file(dev, &dev_attr_diagnostic);
- device_remove_file(dev, &dev_attr_odm_code);
- device_remove_file(dev, &dev_attr_model_code);
- device_remove_file(dev, &dev_attr_firmware_code);
- device_remove_file(dev, &dev_attr_stylus_lower);
- device_remove_file(dev, &dev_attr_stylus_upper);
- device_remove_file(dev, &dev_attr_mouse_left);
- device_remove_file(dev, &dev_attr_mouse_middle);
- device_remove_file(dev, &dev_attr_mouse_right);
- device_remove_file(dev, &dev_attr_wheel);
- device_remove_file(dev, &dev_attr_execute);
-}
+static struct attribute *aiptek_attributes[] = {
+ &dev_attr_size.attr,
+ &dev_attr_pointer_mode.attr,
+ &dev_attr_coordinate_mode.attr,
+ &dev_attr_tool_mode.attr,
+ &dev_attr_xtilt.attr,
+ &dev_attr_ytilt.attr,
+ &dev_attr_jitter.attr,
+ &dev_attr_delay.attr,
+ &dev_attr_event_count.attr,
+ &dev_attr_diagnostic.attr,
+ &dev_attr_odm_code.attr,
+ &dev_attr_model_code.attr,
+ &dev_attr_firmware_code.attr,
+ &dev_attr_stylus_lower.attr,
+ &dev_attr_stylus_upper.attr,
+ &dev_attr_mouse_left.attr,
+ &dev_attr_mouse_middle.attr,
+ &dev_attr_mouse_right.attr,
+ &dev_attr_wheel.attr,
+ &dev_attr_execute.attr,
+ NULL
+};
-/***********************************************************************
- * This routine creates the sysfs files managed by this device
- * driver.
- */
-static int aiptek_add_files(struct device *dev)
-{
- int ret;
-
- if ((ret = device_create_file(dev, &dev_attr_size)) ||
- (ret = device_create_file(dev, &dev_attr_pointer_mode)) ||
- (ret = device_create_file(dev, &dev_attr_coordinate_mode)) ||
- (ret = device_create_file(dev, &dev_attr_tool_mode)) ||
- (ret = device_create_file(dev, &dev_attr_xtilt)) ||
- (ret = device_create_file(dev, &dev_attr_ytilt)) ||
- (ret = device_create_file(dev, &dev_attr_jitter)) ||
- (ret = device_create_file(dev, &dev_attr_delay)) ||
- (ret = device_create_file(dev, &dev_attr_event_count)) ||
- (ret = device_create_file(dev, &dev_attr_diagnostic)) ||
- (ret = device_create_file(dev, &dev_attr_odm_code)) ||
- (ret = device_create_file(dev, &dev_attr_model_code)) ||
- (ret = device_create_file(dev, &dev_attr_firmware_code)) ||
- (ret = device_create_file(dev, &dev_attr_stylus_lower)) ||
- (ret = device_create_file(dev, &dev_attr_stylus_upper)) ||
- (ret = device_create_file(dev, &dev_attr_mouse_left)) ||
- (ret = device_create_file(dev, &dev_attr_mouse_middle)) ||
- (ret = device_create_file(dev, &dev_attr_mouse_right)) ||
- (ret = device_create_file(dev, &dev_attr_wheel)) ||
- (ret = device_create_file(dev, &dev_attr_execute))) {
- err("aiptek: killing own sysfs device files\n");
- aiptek_delete_files(dev);
- }
- return ret;
-}
+static struct attribute_group aiptek_attribute_group = {
+ .attrs = aiptek_attributes,
+};
/***********************************************************************
* This routine is called when a tablet has been identified. It basically
@@ -2039,25 +2005,30 @@
}
}
- /* Register the tablet as an Input Device
- */
- err = input_register_device(aiptek->inputdev);
- if (err)
- goto fail2;
-
/* Associate this driver's struct with the usb interface.
*/
usb_set_intfdata(intf, aiptek);
/* Set up the sysfs files
*/
- aiptek_add_files(&intf->dev);
+ err = sysfs_create_group(&intf->dev.kobj, &aiptek_attribute_group);
+ if (err)
+ goto fail3;
+
+ /* Register the tablet as an Input Device
+ */
+ err = input_register_device(aiptek->inputdev);
+ if (err)
+ goto fail4;
return 0;
+ fail4: sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
+ fail3: usb_free_urb(aiptek->urb);
fail2: usb_buffer_free(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data,
aiptek->data_dma);
- fail1: input_free_device(inputdev);
+ fail1: usb_set_intfdata(intf, NULL);
+ input_free_device(inputdev);
kfree(aiptek);
return err;
}
@@ -2077,7 +2048,7 @@
*/
usb_kill_urb(aiptek->urb);
input_unregister_device(aiptek->inputdev);
- aiptek_delete_files(&intf->dev);
+ sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
usb_free_urb(aiptek->urb);
usb_buffer_free(interface_to_usbdev(intf),
AIPTEK_PACKET_LENGTH,