[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>

1 files changed, 4 insertions, 33 deletions

diff --git a/drivers/char/watchdog/iTCO_wdt.c b/drivers/char/watchdog/iTCO_wdt.c
index 852ad8389bc7..ebd3fc8000e5 100644
--- 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 */
@@ -501,20 +499,6 @@ 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)