[WATCHDOG] iTCO_wdt.c shutdown patch

Since we are using the device driver model,
we don't need to arrange the shutdown via a
reboot_notifier.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/char/watchdog/iTCO_wdt.c b/drivers/char/watchdog/iTCO_wdt.c
index 852ad8389bc742fe70b6aa0651f43229aa52506d..ebd3fc8000e5e414bb5d094720c05d77120a01bb 100644 (file)
--- a/drivers/char/watchdog/iTCO_wdt.c
+++ b/drivers/char/watchdog/iTCO_wdt.c
@@ -45,7 +45,7 @@
 /* Module and version information */
 #define DRV_NAME        "iTCO_wdt"
 #define DRV_VERSION     "1.00"
-#define DRV_RELDATE     "19-Jul-2006"
+#define DRV_RELDATE     "30-Jul-2006"
 #define PFX            DRV_NAME ": "
 
 /* Includes */
@@ -57,8 +57,6 @@
 #include <linux/kernel.h>              /* For printk/panic/... */
 #include <linux/miscdevice.h>          /* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */
 #include <linux/watchdog.h>            /* For the watchdog specific items */
-#include <linux/notifier.h>            /* For notifier support */
-#include <linux/reboot.h>              /* For reboot_notifier stuff */
 #include <linux/init.h>                        /* For __init/__exit/... */
 #include <linux/fs.h>                  /* For file operations */
 #include <linux/platform_device.h>     /* For platform_driver framework */
@@ -500,20 +498,6 @@ static int iTCO_wdt_ioctl (struct inode *inode, struct file *file,
        }
 }
 
-/*
- *     Notify system
- */
-
-static int iTCO_wdt_notify_sys (struct notifier_block *this, unsigned long code, void *unused)
-{
-       if (code==SYS_DOWN || code==SYS_HALT) {
-               /* Turn the WDT off */
-               iTCO_wdt_stop();
-       }
-
-       return NOTIFY_DONE;
-}
-
 /*
  *     Kernel Interfaces
  */
@@ -533,10 +517,6 @@ static struct miscdevice iTCO_wdt_miscdev = {
        .fops =         &iTCO_wdt_fops,
 };
 
-static struct notifier_block iTCO_wdt_notifier = {
-       .notifier_call =        iTCO_wdt_notify_sys,
-};
-
 /*
  *     Init & exit routines
  */
@@ -623,18 +603,11 @@ static int iTCO_wdt_init(struct pci_dev *pdev, const struct pci_device_id *ent,
                        heartbeat);
        }
 
-       ret = register_reboot_notifier(&iTCO_wdt_notifier);
-       if (ret != 0) {
-               printk(KERN_ERR PFX "cannot register reboot notifier (err=%d)\n",
-                       ret);
-               goto unreg_region;
-       }
-
        ret = misc_register(&iTCO_wdt_miscdev);
        if (ret != 0) {
                printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
                        WATCHDOG_MINOR, ret);
-               goto unreg_notifier;
+               goto unreg_region;
        }
 
        printk (KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n",
@@ -642,15 +615,13 @@ static int iTCO_wdt_init(struct pci_dev *pdev, const struct pci_device_id *ent,
 
        return 0;
 
-unreg_notifier:
-       unregister_reboot_notifier(&iTCO_wdt_notifier);
 unreg_region:
        release_region (TCOBASE, 0x20);
 out:
        if (iTCO_wdt_private.iTCO_version == 2)
                iounmap(iTCO_wdt_private.gcs);
-       iTCO_wdt_private.ACPIBASE = 0;
        pci_dev_put(iTCO_wdt_private.pdev);
+       iTCO_wdt_private.ACPIBASE = 0;
        return ret;
 }
 
@@ -662,11 +633,11 @@ static void iTCO_wdt_cleanup(void)
 
        /* Deregister */
        misc_deregister(&iTCO_wdt_miscdev);
-       unregister_reboot_notifier(&iTCO_wdt_notifier);
        release_region(TCOBASE, 0x20);
        if (iTCO_wdt_private.iTCO_version == 2)
                iounmap(iTCO_wdt_private.gcs);
        pci_dev_put(iTCO_wdt_private.pdev);
+       iTCO_wdt_private.ACPIBASE = 0;
 }
 
 static int iTCO_wdt_probe(struct platform_device *dev)