watchdog: softdog: use core reboot notifier
Get rid of the custom reboot notifier block registration and use the one
provided by the watchdog core.
Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirlinux.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/softdog.c b/drivers/watchdog/softdog.c
index 0dc5e323d..fe1e151 100644
--- a/drivers/watchdog/softdog.c
+++ b/drivers/watchdog/softdog.c
@@ -43,7 +43,6 @@
#include <linux/types.h>
#include <linux/timer.h>
#include <linux/watchdog.h>
-#include <linux/notifier.h>
#include <linux/reboot.h>
#include <linux/init.h>
#include <linux/jiffies.h>
@@ -122,26 +121,9 @@
}
/*
- * Notifier for system down
- */
-
-static int softdog_notify_sys(struct notifier_block *this, unsigned long code,
- void *unused)
-{
- if (code == SYS_DOWN || code == SYS_HALT)
- /* Turn the WDT off */
- softdog_stop(NULL);
- return NOTIFY_DONE;
-}
-
-/*
* Kernel Interfaces
*/
-static struct notifier_block softdog_notifier = {
- .notifier_call = softdog_notify_sys,
-};
-
static struct watchdog_info softdog_info = {
.identity = "Software Watchdog",
.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
@@ -175,18 +157,11 @@
softdog_dev.timeout = soft_margin;
watchdog_set_nowayout(&softdog_dev, nowayout);
-
- ret = register_reboot_notifier(&softdog_notifier);
- if (ret) {
- pr_err("cannot register reboot notifier (err=%d)\n", ret);
- return ret;
- }
+ watchdog_stop_on_reboot(&softdog_dev);
ret = watchdog_register_device(&softdog_dev);
- if (ret) {
- unregister_reboot_notifier(&softdog_notifier);
+ if (ret)
return ret;
- }
pr_info("Software Watchdog Timer: 0.08 initialized. soft_noboot=%d soft_margin=%d sec soft_panic=%d (nowayout=%d)\n",
soft_noboot, soft_margin, soft_panic, nowayout);
@@ -197,7 +172,6 @@
static void __exit watchdog_exit(void)
{
watchdog_unregister_device(&softdog_dev);
- unregister_reboot_notifier(&softdog_notifier);
}
module_init(watchdog_init);