leds: Fix leds_list_lock locking issues
Covert leds_list_lock to a rw_sempahore to match previous LED trigger
locking fixes, fixing lock ordering.
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index ba8b04b..64c66b3 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -106,9 +106,9 @@
goto err_out;
/* add to the list of leds */
- write_lock(&leds_list_lock);
+ down_write(&leds_list_lock);
list_add_tail(&led_cdev->node, &leds_list);
- write_unlock(&leds_list_lock);
+ up_write(&leds_list_lock);
#ifdef CONFIG_LEDS_TRIGGERS
init_rwsem(&led_cdev->trigger_lock);
@@ -155,9 +155,9 @@
device_unregister(led_cdev->dev);
- write_lock(&leds_list_lock);
+ down_write(&leds_list_lock);
list_del(&led_cdev->node);
- write_unlock(&leds_list_lock);
+ up_write(&leds_list_lock);
}
EXPORT_SYMBOL_GPL(led_classdev_unregister);