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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2018-07-02 22:05:21 +0200 |
|---|---|---|
| committer | Jacek Anaszewski <jacek.anaszewski@gmail.com> | 2018-07-05 23:21:10 +0200 |
| commit | 2282e125a406e09331c5a785e3df29035c99a607 (patch) | |
| tree | b5936ee2bde7c85bf71aaff259026857b2bda6d9 /net/bluetooth/leds.c | |
| parent | 033692eb3ec8305f6e9998b297aaec6899680637 (diff) | |
| download | linux-2282e125a406e09331c5a785e3df29035c99a607.tar.bz2 | |
leds: triggers: let struct led_trigger::activate() return an error code
Given that activating a trigger can fail, let the callback return an
indication. This prevents to have a trigger active according to the
"trigger" sysfs attribute but not functional.
All users are changed accordingly to return 0 for now. There is no intended
change in behaviour.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Diffstat (limited to 'net/bluetooth/leds.c')
| -rw-r--r-- | net/bluetooth/leds.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/bluetooth/leds.c b/net/bluetooth/leds.c index cb670b5594eb..6d59a5023231 100644 --- a/net/bluetooth/leds.c +++ b/net/bluetooth/leds.c @@ -43,7 +43,7 @@ void hci_leds_update_powered(struct hci_dev *hdev, bool enabled) led_trigger_event(bt_power_led_trigger, enabled ? LED_FULL : LED_OFF); } -static void power_activate(struct led_classdev *led_cdev) +static int power_activate(struct led_classdev *led_cdev) { struct hci_basic_led_trigger *htrig; bool powered; @@ -52,10 +52,12 @@ static void power_activate(struct led_classdev *led_cdev) powered = test_bit(HCI_UP, &htrig->hdev->flags); led_trigger_event(led_cdev->trigger, powered ? LED_FULL : LED_OFF); + + return 0; } static struct led_trigger *led_allocate_basic(struct hci_dev *hdev, - void (*activate)(struct led_classdev *led_cdev), + int (*activate)(struct led_classdev *led_cdev), const char *name) { struct hci_basic_led_trigger *htrig; |