diff options
Diffstat (limited to 'drivers/watchdog/sbc7240_wdt.c')
| -rw-r--r-- | drivers/watchdog/sbc7240_wdt.c | 51 |
1 files changed, 19 insertions, 32 deletions
diff --git a/drivers/watchdog/sbc7240_wdt.c b/drivers/watchdog/sbc7240_wdt.c index 67ddeb1c830..5f268add17c 100644 --- a/drivers/watchdog/sbc7240_wdt.c +++ b/drivers/watchdog/sbc7240_wdt.c @@ -16,6 +16,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/fs.h> #include <linux/init.h> #include <linux/ioport.h> @@ -29,10 +31,7 @@ #include <linux/watchdog.h> #include <linux/io.h> #include <linux/uaccess.h> -#include <asm/atomic.h> -#include <asm/system.h> - -#define SBC7240_PREFIX "sbc7240_wdt: " +#include <linux/atomic.h> #define SBC7240_ENABLE_PORT 0x443 #define SBC7240_DISABLE_PORT 0x043 @@ -47,8 +46,8 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. (1<=timeout<=" __MODULE_STRING(SBC7240_MAX_TIMEOUT) ", default=" __MODULE_STRING(SBC7240_TIMEOUT) ")"); -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Disable watchdog when closing device file"); #define SBC7240_OPEN_STATUS_BIT 0 @@ -65,8 +64,7 @@ static void wdt_disable(void) /* disable the watchdog */ if (test_and_clear_bit(SBC7240_ENABLED_STATUS_BIT, &wdt_status)) { inb_p(SBC7240_DISABLE_PORT); - printk(KERN_INFO SBC7240_PREFIX - "Watchdog timer is now disabled.\n"); + pr_info("Watchdog timer is now disabled\n"); } } @@ -75,23 +73,20 @@ static void wdt_enable(void) /* enable the watchdog */ if (!test_and_set_bit(SBC7240_ENABLED_STATUS_BIT, &wdt_status)) { inb_p(SBC7240_ENABLE_PORT); - printk(KERN_INFO SBC7240_PREFIX - "Watchdog timer is now enabled.\n"); + pr_info("Watchdog timer is now enabled\n"); } } static int wdt_set_timeout(int t) { if (t < 1 || t > SBC7240_MAX_TIMEOUT) { - printk(KERN_ERR SBC7240_PREFIX - "timeout value must be 1<=x<=%d\n", - SBC7240_MAX_TIMEOUT); + pr_err("timeout value must be 1<=x<=%d\n", SBC7240_MAX_TIMEOUT); return -1; } /* set the timeout */ outb_p((unsigned)t, SBC7240_SET_TIMEOUT_PORT); timeout = t; - printk(KERN_INFO SBC7240_PREFIX "timeout set to %d seconds\n", t); + pr_info("timeout set to %d seconds\n", t); return 0; } @@ -150,8 +145,7 @@ static int fop_close(struct inode *inode, struct file *file) || !nowayout) { wdt_disable(); } else { - printk(KERN_CRIT SBC7240_PREFIX - "Unexpected close, not stopping watchdog!\n"); + pr_crit("Unexpected close, not stopping watchdog!\n"); wdt_keepalive(); } @@ -252,7 +246,7 @@ static struct notifier_block wdt_notifier = { static void __exit sbc7240_wdt_unload(void) { - printk(KERN_INFO SBC7240_PREFIX "Removing watchdog\n"); + pr_info("Removing watchdog\n"); misc_deregister(&wdt_miscdev); unregister_reboot_notifier(&wdt_notifier); @@ -264,8 +258,7 @@ static int __init sbc7240_wdt_init(void) int rc = -EBUSY; if (!request_region(SBC7240_ENABLE_PORT, 1, "SBC7240 WDT")) { - printk(KERN_ERR SBC7240_PREFIX - "I/O address 0x%04x already in use\n", + pr_err("I/O address 0x%04x already in use\n", SBC7240_ENABLE_PORT); rc = -EIO; goto err_out; @@ -273,35 +266,31 @@ static int __init sbc7240_wdt_init(void) /* The IO port 0x043 used to disable the watchdog * is already claimed by the system timer, so we - * cant request_region() it ...*/ + * can't request_region() it ...*/ if (timeout < 1 || timeout > SBC7240_MAX_TIMEOUT) { timeout = SBC7240_TIMEOUT; - printk(KERN_INFO SBC7240_PREFIX - "timeout value must be 1<=x<=%d, using %d\n", - SBC7240_MAX_TIMEOUT, timeout); + pr_info("timeout value must be 1<=x<=%d, using %d\n", + SBC7240_MAX_TIMEOUT, timeout); } wdt_set_timeout(timeout); wdt_disable(); rc = register_reboot_notifier(&wdt_notifier); if (rc) { - printk(KERN_ERR SBC7240_PREFIX - "cannot register reboot notifier (err=%d)\n", rc); + pr_err("cannot register reboot notifier (err=%d)\n", rc); goto err_out_region; } rc = misc_register(&wdt_miscdev); if (rc) { - printk(KERN_ERR SBC7240_PREFIX - "cannot register miscdev on minor=%d (err=%d)\n", + pr_err("cannot register miscdev on minor=%d (err=%d)\n", wdt_miscdev.minor, rc); goto err_out_reboot_notifier; } - printk(KERN_INFO SBC7240_PREFIX - "Watchdog driver for SBC7240 initialised (nowayout=%d)\n", - nowayout); + pr_info("Watchdog driver for SBC7240 initialised (nowayout=%d)\n", + nowayout); return 0; @@ -320,5 +309,3 @@ MODULE_AUTHOR("Gilles Gigan"); MODULE_DESCRIPTION("Watchdog device driver for single board" " computers EPIC Nano 7240 from iEi"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); - |