diff options
| author | Kees Cook <keescook@chromium.org> | 2017-10-04 17:49:34 -0700 |
|---|---|---|
| committer | Jacek Anaszewski <jacek.anaszewski@gmail.com> | 2017-10-06 21:39:21 +0200 |
| commit | 26c7d6a321da64b49c38fffd827377fd8eb2379c (patch) | |
| tree | dec88d54bbe25ee5ae367c2c7b9bfc45447d57a4 /drivers/leds | |
| parent | 55edd1dad96b760c87f5b9e2c461ba551a625f44 (diff) | |
| download | linux-26c7d6a321da64b49c38fffd827377fd8eb2379c.tar.bz2 | |
leds: ledtrig-heartbeat: Convert timers to use timer_setup()
Instead of using .data directly, convert to from_timer. Since the
trigger_data is allocated separately, the led_cdev must be explicitly
tracked for the callback.
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Zhang Bo <bo.zhang@nxp.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: linux-leds@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/trigger/ledtrig-heartbeat.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/leds/trigger/ledtrig-heartbeat.c b/drivers/leds/trigger/ledtrig-heartbeat.c index e95ea65380c8..f0896de410b8 100644 --- a/drivers/leds/trigger/ledtrig-heartbeat.c +++ b/drivers/leds/trigger/ledtrig-heartbeat.c @@ -25,19 +25,23 @@ static int panic_heartbeats; struct heartbeat_trig_data { + struct led_classdev *led_cdev; unsigned int phase; unsigned int period; struct timer_list timer; unsigned int invert; }; -static void led_heartbeat_function(unsigned long data) +static void led_heartbeat_function(struct timer_list *t) { - struct led_classdev *led_cdev = (struct led_classdev *) data; - struct heartbeat_trig_data *heartbeat_data = led_cdev->trigger_data; + struct heartbeat_trig_data *heartbeat_data = + from_timer(heartbeat_data, t, timer); + struct led_classdev *led_cdev; unsigned long brightness = LED_OFF; unsigned long delay = 0; + led_cdev = heartbeat_data->led_cdev; + if (unlikely(panic_heartbeats)) { led_set_brightness_nosleep(led_cdev, LED_OFF); return; @@ -127,18 +131,18 @@ static void heartbeat_trig_activate(struct led_classdev *led_cdev) return; led_cdev->trigger_data = heartbeat_data; + heartbeat_data->led_cdev = led_cdev; rc = device_create_file(led_cdev->dev, &dev_attr_invert); if (rc) { kfree(led_cdev->trigger_data); return; } - setup_timer(&heartbeat_data->timer, - led_heartbeat_function, (unsigned long) led_cdev); + timer_setup(&heartbeat_data->timer, led_heartbeat_function, 0); heartbeat_data->phase = 0; if (!led_cdev->blink_brightness) led_cdev->blink_brightness = led_cdev->max_brightness; - led_heartbeat_function(heartbeat_data->timer.data); + led_heartbeat_function(&heartbeat_data->timer); set_bit(LED_BLINK_SW, &led_cdev->work_flags); led_cdev->activated = true; } |