Commit 12fda168 authored by Jeff Garzik's avatar Jeff Garzik Committed by Linus Torvalds
Browse files

[PATCH] drivers/led: handle sysfs errors 



Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 58ff407b

drivers/leds/led-class.c

+21 −5
Original line number Diff line number Diff line
@@ -91,6 +91,8 @@ EXPORT_SYMBOL_GPL(led_classdev_resume); 
 */

int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)

{

	int rc;



	led_cdev->class_dev = class_device_create(leds_class, NULL, 0,

						parent, "%s", led_cdev->name);

	if (unlikely(IS_ERR(led_cdev->class_dev)))
@@ -99,8 +101,10 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev) 
	class_set_devdata(led_cdev->class_dev, led_cdev);



	/* register the attributes */

	class_device_create_file(led_cdev->class_dev,

	rc = class_device_create_file(led_cdev->class_dev,

				      &class_device_attr_brightness);

	if (rc)

		goto err_out;



	/* add to the list of leds */

	write_lock(&leds_list_lock);
@@ -110,16 +114,28 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev) 
#ifdef CONFIG_LEDS_TRIGGERS

	rwlock_init(&led_cdev->trigger_lock);



	led_trigger_set_default(led_cdev);



	class_device_create_file(led_cdev->class_dev,

	rc = class_device_create_file(led_cdev->class_dev,

				      &class_device_attr_trigger);

	if (rc)

		goto err_out_led_list;



	led_trigger_set_default(led_cdev);

#endif



	printk(KERN_INFO "Registered led device: %s\n",

			led_cdev->class_dev->class_id);



	return 0;



#ifdef CONFIG_LEDS_TRIGGERS

err_out_led_list:

	class_device_remove_file(led_cdev->class_dev,

				&class_device_attr_brightness);

	list_del(&led_cdev->node);

#endif

err_out:

	class_device_unregister(led_cdev->class_dev);

	return rc;

}

EXPORT_SYMBOL_GPL(led_classdev_register);

drivers/leds/ledtrig-timer.c

+14 −2
Original line number Diff line number Diff line
@@ -123,6 +123,7 @@ static CLASS_DEVICE_ATTR(delay_off, 0644, led_delay_off_show, 
static void timer_trig_activate(struct led_classdev *led_cdev)

{

	struct timer_trig_data *timer_data;

	int rc;



	timer_data = kzalloc(sizeof(struct timer_trig_data), GFP_KERNEL);

	if (!timer_data)
@@ -134,10 +135,21 @@ static void timer_trig_activate(struct led_classdev *led_cdev) 
	timer_data->timer.function = led_timer_function;

	timer_data->timer.data = (unsigned long) led_cdev;



	class_device_create_file(led_cdev->class_dev,

	rc = class_device_create_file(led_cdev->class_dev,

				&class_device_attr_delay_on);

	class_device_create_file(led_cdev->class_dev,

	if (rc) goto err_out;

	rc = class_device_create_file(led_cdev->class_dev,

				&class_device_attr_delay_off);

	if (rc) goto err_out_delayon;



	return;



err_out_delayon:

	class_device_remove_file(led_cdev->class_dev,

				&class_device_attr_delay_on);

err_out:

	led_cdev->trigger_data = NULL;

	kfree(timer_data);

}



static void timer_trig_deactivate(struct led_classdev *led_cdev)