@@ -777,7 +777,7 @@ static enum led_brightness lenovo_led_brightness_get(
: LED_OFF;
}
-static void lenovo_led_brightness_set(struct led_classdev *led_cdev,
+static int lenovo_led_brightness_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct device *dev = led_cdev->dev->parent;
@@ -802,6 +802,8 @@ static void lenovo_led_brightness_set(struct led_classdev *led_cdev,
lenovo_led_set_tp10ubkbd(hdev, tp10ubkbd_led[led_nr], value);
break;
}
+
+ return 0;
}
static int lenovo_register_leds(struct hid_device *hdev)
@@ -822,7 +824,7 @@ static int lenovo_register_leds(struct hid_device *hdev)
data->led_mute.name = name_mute;
data->led_mute.brightness_get = lenovo_led_brightness_get;
- data->led_mute.brightness_set = lenovo_led_brightness_set;
+ data->led_mute.brightness_set_blocking = lenovo_led_brightness_set;
data->led_mute.dev = &hdev->dev;
ret = led_classdev_register(&hdev->dev, &data->led_mute);
if (ret < 0)
@@ -830,7 +832,7 @@ static int lenovo_register_leds(struct hid_device *hdev)
data->led_micmute.name = name_micm;
data->led_micmute.brightness_get = lenovo_led_brightness_get;
- data->led_micmute.brightness_set = lenovo_led_brightness_set;
+ data->led_micmute.brightness_set_blocking = lenovo_led_brightness_set;
data->led_micmute.dev = &hdev->dev;
ret = led_classdev_register(&hdev->dev, &data->led_micmute);
if (ret < 0) {
The lenovo_led_brightness_set function may sleep, so we should have the the led_class_dev's brightness_set_blocking callback point to it, rather then the regular brightness_set callback. When toggled through sysfs this is not a problem, but the brightness_set callback may be called from atomic context when using LED-triggers. Fixes: bc04b37ea0ec ("HID: lenovo: Add ThinkPad 10 Ultrabook Keyboard support") Reviewed-by: Marek Behún <kabel@kernel.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> --- drivers/hid/hid-lenovo.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)