[PATCH 4/4] leds:trigger:ledtrig-heartbeat: Replace "panic_heartbeats" with is_be_panic()

[Xiaoming Ni]

Replace the global variable "panic_heartbeats" with is_be_panic()

Signed-off-by: Xiaoming Ni <nixiaom...@huawei.com>
---
 drivers/leds/trigger/ledtrig-heartbeat.c | 19 +------------------
 1 file changed, 1 insertion(+), 18 deletions(-)

diff --git a/drivers/leds/trigger/ledtrig-heartbeat.c 
b/drivers/leds/trigger/ledtrig-heartbeat.c
index 36b6709afe9f..3c34d49f0ed8 100644
--- a/drivers/leds/trigger/ledtrig-heartbeat.c
+++ b/drivers/leds/trigger/ledtrig-heartbeat.c
@@ -19,8 +19,6 @@
 #include <linux/reboot.h>
 #include "../leds.h"
 
-static int panic_heartbeats;
-
 struct heartbeat_trig_data {
        struct led_classdev *led_cdev;
        unsigned int phase;
@@ -39,7 +37,7 @@ static void led_heartbeat_function(struct timer_list *t)
 
        led_cdev = heartbeat_data->led_cdev;
 
-       if (unlikely(panic_heartbeats)) {
+       if (unlikely(is_being_panic())) {
                led_set_brightness_nosleep(led_cdev, LED_OFF);
                return;
        }
@@ -169,28 +167,15 @@ static int heartbeat_reboot_notifier(struct 
notifier_block *nb,
        return NOTIFY_DONE;
 }
 
-static int heartbeat_panic_notifier(struct notifier_block *nb,
-                                    unsigned long code, void *unused)
-{
-       panic_heartbeats = 1;
-       return NOTIFY_DONE;
-}
-
 static struct notifier_block heartbeat_reboot_nb = {
        .notifier_call = heartbeat_reboot_notifier,
 };
 
-static struct notifier_block heartbeat_panic_nb = {
-       .notifier_call = heartbeat_panic_notifier,
-};
-
 static int __init heartbeat_trig_init(void)
 {
        int rc = led_trigger_register(&heartbeat_led_trigger);
 
        if (!rc) {
-               atomic_notifier_chain_register(&panic_notifier_list,
-                                              &heartbeat_panic_nb);
                register_reboot_notifier(&heartbeat_reboot_nb);
        }
        return rc;
@@ -199,8 +184,6 @@ static int __init heartbeat_trig_init(void)
 static void __exit heartbeat_trig_exit(void)
 {
        unregister_reboot_notifier(&heartbeat_reboot_nb);
-       atomic_notifier_chain_unregister(&panic_notifier_list,
-                                        &heartbeat_panic_nb);
        led_trigger_unregister(&heartbeat_led_trigger);
 }
 
-- 
2.27.0