diff options
Diffstat (limited to 'drivers/leds/led-class.c')
| -rw-r--r-- | drivers/leds/led-class.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c index b0e2d55acbd6..3c7e3487b373 100644 --- a/drivers/leds/led-class.c +++ b/drivers/leds/led-class.c @@ -260,10 +260,14 @@ int of_led_classdev_register(struct device *parent, struct device_node *np, if (ret < 0) return ret; + mutex_init(&led_cdev->led_access); + mutex_lock(&led_cdev->led_access); led_cdev->dev = device_create_with_groups(leds_class, parent, 0, led_cdev, led_cdev->groups, "%s", name); - if (IS_ERR(led_cdev->dev)) + if (IS_ERR(led_cdev->dev)) { + mutex_unlock(&led_cdev->led_access); return PTR_ERR(led_cdev->dev); + } led_cdev->dev->of_node = np; if (ret) @@ -274,6 +278,7 @@ int of_led_classdev_register(struct device *parent, struct device_node *np, ret = led_add_brightness_hw_changed(led_cdev); if (ret) { device_unregister(led_cdev->dev); + mutex_unlock(&led_cdev->led_access); return ret; } } @@ -285,7 +290,6 @@ int of_led_classdev_register(struct device *parent, struct device_node *np, #ifdef CONFIG_LEDS_BRIGHTNESS_HW_CHANGED led_cdev->brightness_hw_changed = -1; #endif - mutex_init(&led_cdev->led_access); /* add to the list of leds */ down_write(&leds_list_lock); list_add_tail(&led_cdev->node, &leds_list); @@ -302,6 +306,8 @@ int of_led_classdev_register(struct device *parent, struct device_node *np, led_trigger_set_default(led_cdev); #endif + mutex_unlock(&led_cdev->led_access); + dev_dbg(parent, "Registered led device: %s\n", led_cdev->name); |