Merge tag 'leds-fixes-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds

Pull LED fix from Lee Jones:

 - Fix race condition leading to null pointer dereference on ThinkPad

* tag 'leds-fixes-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds:
  leds: led-class: Only Add LED to leds_list when it is fully ready

Author: torvalds

drivers/leds/led-class.c

@@ -560,11 +560,6 @@ int led_classdev_register_ext(struct device *parent,
 #ifdef CONFIG_LEDS_BRIGHTNESS_HW_CHANGED
 	led_cdev->brightness_hw_changed = -1;
 #endif
-	/* add to the list of leds */
-	down_write(&leds_list_lock);
-	list_add_tail(&led_cdev->node, &leds_list);
-	up_write(&leds_list_lock);
-
 	if (!led_cdev->max_brightness)
 		led_cdev->max_brightness = LED_FULL;
 
@@ -574,6 +569,11 @@ int led_classdev_register_ext(struct device *parent,
 
 	led_init_core(led_cdev);
 
+	/* add to the list of leds */
+	down_write(&leds_list_lock);
+	list_add_tail(&led_cdev->node, &leds_list);
+	up_write(&leds_list_lock);
+
 #ifdef CONFIG_LEDS_TRIGGERS
 	led_trigger_set_default(led_cdev);
 #endif