diff options
Diffstat (limited to 'drivers/char/watchdog/advantechwdt.c')
| -rw-r--r-- | drivers/char/watchdog/advantechwdt.c | 46 |
1 files changed, 9 insertions, 37 deletions
diff --git a/drivers/char/watchdog/advantechwdt.c b/drivers/char/watchdog/advantechwdt.c index 528a417856c4..8121cc247343 100644 --- a/drivers/char/watchdog/advantechwdt.c +++ b/drivers/char/watchdog/advantechwdt.c @@ -35,8 +35,6 @@ #include <linux/watchdog.h> #include <linux/fs.h> #include <linux/ioport.h> -#include <linux/notifier.h> -#include <linux/reboot.h> #include <linux/platform_device.h> #include <linux/init.h> @@ -225,21 +223,6 @@ advwdt_close(struct inode *inode, struct file *file) } /* - * Notifier for system down - */ - -static int -advwdt_notify_sys(struct notifier_block *this, unsigned long code, - void *unused) -{ - if (code == SYS_DOWN || code == SYS_HALT) { - /* Turn the WDT off */ - advwdt_disable(); - } - return NOTIFY_DONE; -} - -/* * Kernel Interfaces */ @@ -259,15 +242,6 @@ static struct miscdevice advwdt_miscdev = { }; /* - * The WDT needs to learn about soft shutdowns in order to - * turn the timebomb registers off. - */ - -static struct notifier_block advwdt_notifier = { - .notifier_call = advwdt_notify_sys, -}; - -/* * Init & exit routines */ @@ -299,18 +273,11 @@ advwdt_probe(struct platform_device *dev) timeout); } - ret = register_reboot_notifier(&advwdt_notifier); - if (ret != 0) { - printk (KERN_ERR PFX "cannot register reboot notifier (err=%d)\n", - ret); - goto unreg_regions; - } - ret = misc_register(&advwdt_miscdev); if (ret != 0) { printk (KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n", WATCHDOG_MINOR, ret); - goto unreg_reboot; + goto unreg_regions; } printk (KERN_INFO PFX "initialized. timeout=%d sec (nowayout=%d)\n", @@ -318,8 +285,6 @@ advwdt_probe(struct platform_device *dev) out: return ret; -unreg_reboot: - unregister_reboot_notifier(&advwdt_notifier); unreg_regions: release_region(wdt_start, 1); unreg_stop: @@ -332,7 +297,6 @@ static int __devexit advwdt_remove(struct platform_device *dev) { misc_deregister(&advwdt_miscdev); - unregister_reboot_notifier(&advwdt_notifier); release_region(wdt_start,1); if(wdt_stop != wdt_start) release_region(wdt_stop,1); @@ -340,9 +304,17 @@ advwdt_remove(struct platform_device *dev) return 0; } +static void +advwdt_shutdown(struct platform_device *dev) +{ + /* Turn the WDT off if we have a soft shutdown */ + advwdt_disable(); +} + static struct platform_driver advwdt_driver = { .probe = advwdt_probe, .remove = __devexit_p(advwdt_remove), + .shutdown = advwdt_shutdown, .driver = { .owner = THIS_MODULE, .name = DRV_NAME, |
