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[PATCH] drivers/led: handle sysfs errors

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Signed-off-by: Jeff Garzik <jeff@garzik.org>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jeff Garzik
2006-10-17 00:10:20 -07:00
committed by Linus Torvalds
parent 58ff407bee
commit 12fda16814
2 changed files with 35 additions and 7 deletions
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26
drivers/leds/led-class.c
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@ -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,
&class_device_attr_brightness);
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);
rc = class_device_create_file(led_cdev->class_dev,
&class_device_attr_trigger);
if (rc)
goto err_out_led_list;
class_device_create_file(led_cdev->class_dev,
&class_device_attr_trigger);
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);