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[WATCHDOG] acquirewdt.c - convert to platform_device part 2

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Convert the reboot_notifier into the platform_device's shutdown
method

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Wim Van Sebroeck 2007-01-10 23:38:56 +01:00
parent ad5fe32318
commit 98c08e98f8
1 changed files with 8 additions and 36 deletions
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44
drivers/char/watchdog/acquirewdt.c
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@ -62,8 +62,6 @@
#include <linux/watchdog.h> /* For the watchdog specific items */
#include <linux/fs.h> /* For file operations */
#include <linux/ioport.h> /* For io-port access */
#include <linux/notifier.h> /* For reboot notifier */
#include <linux/reboot.h> /* For reboot notifier */
#include <linux/platform_device.h> /* For platform_driver framework */
#include <linux/init.h> /* For __init/__exit/... */
@ -221,20 +219,6 @@ static int acq_close(struct inode *inode, struct file *file)
return 0;
}
/*
* Notifier for system down
*/
static int acq_notify_sys(struct notifier_block *this, unsigned long code,
void *unused)
{
if(code==SYS_DOWN || code==SYS_HALT) {
/* Turn the WDT off */
acq_stop();
}
return NOTIFY_DONE;
}
/*
* Kernel Interfaces
*/
@ -254,15 +238,6 @@ static struct miscdevice acq_miscdev = {
.fops = &acq_fops,
};
/*
* The WDT card needs to learn about soft shutdowns in order to
* turn the timebomb registers off.
*/
static struct notifier_block acq_notifier = {
.notifier_call = acq_notify_sys,
};
/*
* Init & exit routines
*/
@ -287,18 +262,11 @@ static int __devinit acq_probe(struct platform_device *dev)
goto unreg_stop;
}
ret = register_reboot_notifier(&acq_notifier);
if (ret != 0) {
printk (KERN_ERR PFX "cannot register reboot notifier (err=%d)\n",
ret);
goto unreg_regions;
}
ret = misc_register(&acq_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. (nowayout=%d)\n",
@ -306,8 +274,6 @@ static int __devinit acq_probe(struct platform_device *dev)
return 0;
unreg_reboot:
unregister_reboot_notifier(&acq_notifier);
unreg_regions:
release_region(wdt_start, 1);
unreg_stop:
@ -320,7 +286,6 @@ static int __devinit acq_probe(struct platform_device *dev)
static int __devexit acq_remove(struct platform_device *dev)
{
misc_deregister(&acq_miscdev);
unregister_reboot_notifier(&acq_notifier);
release_region(wdt_start,1);
if(wdt_stop != wdt_start)
release_region(wdt_stop,1);
@ -328,9 +293,16 @@ static int __devexit acq_remove(struct platform_device *dev)
return 0;
}
static void acq_shutdown(struct platform_device *dev)
{
/* Turn the WDT off if we have a soft shutdown */
acq_stop();
}
static struct platform_driver acquirewdt_driver = {
.probe = acq_probe,
.remove = __devexit_p(acq_remove),
.shutdown = acq_shutdown,
.driver = {
.owner = THIS_MODULE,
.name = DRV_NAME,