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[WATCHDOG] advantechwdt.c - cleanup before platform_device patches 

This cleanup consists of:
- make sure that the printk's use the module/driver-name
- do the exit of the module exactly the opposite of the init of the module

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Wim Van Sebroeck 2007-01-11 22:19:28 +01:00
parent 98c08e98f8
commit 1d747be647
1 changed files with 17 additions and 8 deletions
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25
drivers/char/watchdog/advantechwdt.c
View File

@ -43,8 +43,9 @@
#include <asm/uaccess.h> #include <asm/uaccess.h>
#include <asm/system.h> #include <asm/system.h>
#define DRV_NAME "advantechwdt"
#define PFX DRV_NAME ": "
#define WATCHDOG_NAME "Advantech WDT" #define WATCHDOG_NAME "Advantech WDT"
#define PFX WATCHDOG_NAME ": "
#define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */ #define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */
static unsigned long advwdt_is_open; static unsigned long advwdt_is_open;
@ -75,10 +76,10 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. 1<= timeout <=63, defaul
static int nowayout = WATCHDOG_NOWAYOUT; static int nowayout = WATCHDOG_NOWAYOUT;
module_param(nowayout, int, 0); module_param(nowayout, int, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)"); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
/* /*
* Kernel methods. * Watchdog Operations
*/ */
static void static void
@ -94,6 +95,10 @@ advwdt_disable(void)
inb_p(wdt_stop); inb_p(wdt_stop);
} }
/*
* /dev/watchdog handling
*/
static ssize_t static ssize_t
advwdt_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) advwdt_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
{ {
@ -126,7 +131,7 @@ advwdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
static struct watchdog_info ident = { static struct watchdog_info ident = {
.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE, .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE,
.firmware_version = 1, .firmware_version = 1,
.identity = "Advantech WDT", .identity = WATCHDOG_NAME,
}; };
switch (cmd) { switch (cmd) {
@ -237,9 +242,9 @@ static const struct file_operations advwdt_fops = {
}; };
static struct miscdevice advwdt_miscdev = { static struct miscdevice advwdt_miscdev = {
.minor = WATCHDOG_MINOR, .minor = WATCHDOG_MINOR,
.name = "watchdog", .name = "watchdog",
.fops = &advwdt_fops, .fops = &advwdt_fops,
}; };
/* /*
@ -251,6 +256,10 @@ static struct notifier_block advwdt_notifier = {
.notifier_call = advwdt_notify_sys, .notifier_call = advwdt_notify_sys,
}; };
/*
* Init & exit routines
*/
static int __init static int __init
advwdt_init(void) advwdt_init(void)
{ {
@ -314,9 +323,9 @@ advwdt_exit(void)
{ {
misc_deregister(&advwdt_miscdev); misc_deregister(&advwdt_miscdev);
unregister_reboot_notifier(&advwdt_notifier); unregister_reboot_notifier(&advwdt_notifier);
release_region(wdt_start,1);
if(wdt_stop != wdt_start) if(wdt_stop != wdt_start)
release_region(wdt_stop,1); release_region(wdt_stop,1);
release_region(wdt_start,1);
} }
module_init(advwdt_init); module_init(advwdt_init);