X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/13ac16c77f791167b60e4b5d8e36033ec0c7ead3..9aeb2624acc2c1cb7654ed51c53e577b14abb49e:/target/linux/adm5120/files/drivers/watchdog/adm5120_wdt.c diff --git a/target/linux/adm5120/files/drivers/watchdog/adm5120_wdt.c b/target/linux/adm5120/files/drivers/watchdog/adm5120_wdt.c index cddb1721c..bf9056894 100644 --- a/target/linux/adm5120/files/drivers/watchdog/adm5120_wdt.c +++ b/target/linux/adm5120/files/drivers/watchdog/adm5120_wdt.c @@ -12,20 +12,18 @@ * 2 of the License, or (at your option) any later version. * */ - #include #include #include #include #include +#include #include -#include -#include -#include -#include - +#include +#include +#include #define DEFAULT_TIMEOUT 15 /* (secs) Default is 15 seconds */ #define MAX_TIMEOUT 327 @@ -34,8 +32,8 @@ #define NAME "adm5120_wdt" #define VERSION "0.1" -static int expect_close = 0; -static int access = 0; +static int expect_close; +static int access; static unsigned int timeout = DEFAULT_TIMEOUT; static int nowayout = WATCHDOG_NOWAYOUT; @@ -73,9 +71,8 @@ static int wdt_open(struct inode *inode, struct file *file) if (access) return -EBUSY; - if (nowayout) { + if (nowayout) __module_get(THIS_MODULE); - } /* Activate timer */ wdt_reset_counter(); @@ -88,16 +85,16 @@ static int wdt_open(struct inode *inode, struct file *file) static int wdt_release(struct inode *inode, struct file *file) { /* - * Shut off the timer. - * Lock it in if it's a module and we set nowayout + * Shut off the timer. + * Lock it in if it's a module and we set nowayout */ if (expect_close && (nowayout == 0)) { wdt_disable(); printk(KERN_INFO NAME ": disabling watchdog timer\n"); module_put(THIS_MODULE); - } else { + } else printk(KERN_CRIT NAME ": device closed unexpectedly. WDT will not stop!\n"); - } + access = 0; return 0; } @@ -138,46 +135,46 @@ static int wdt_ioctl(struct inode *inode, struct file *file, .identity = "ADM5120_WDT Watchdog", }; switch (cmd) { - default: - return -ENOTTY; - case WDIOC_GETSUPPORT: - if(copy_to_user((struct watchdog_info *)arg, &ident, sizeof(ident))) - return -EFAULT; - return 0; - case WDIOC_GETSTATUS: - case WDIOC_GETBOOTSTATUS: - return put_user(0,(int *)arg); - case WDIOC_KEEPALIVE: - wdt_reset_counter(); - return 0; - case WDIOC_SETTIMEOUT: - if (get_user(new_timeout, (int *)arg)) - return -EFAULT; - if (new_timeout < 1) - return -EINVAL; - if (new_timeout > MAX_TIMEOUT) - return -EINVAL; - timeout = new_timeout; - wdt_set_timeout(); - /* Fall */ - case WDIOC_GETTIMEOUT: - return put_user(timeout, (int *)arg); + default: + return -ENOTTY; + case WDIOC_GETSUPPORT: + if (copy_to_user((struct watchdog_info *)arg, &ident, sizeof(ident))) + return -EFAULT; + return 0; + case WDIOC_GETSTATUS: + case WDIOC_GETBOOTSTATUS: + return put_user(0, (int *)arg); + case WDIOC_KEEPALIVE: + wdt_reset_counter(); + return 0; + case WDIOC_SETTIMEOUT: + if (get_user(new_timeout, (int *)arg)) + return -EFAULT; + if (new_timeout < 1) + return -EINVAL; + if (new_timeout > MAX_TIMEOUT) + return -EINVAL; + timeout = new_timeout; + wdt_set_timeout(); + /* Fall */ + case WDIOC_GETTIMEOUT: + return put_user(timeout, (int *)arg); } } -static struct file_operations wdt_fops = { - owner: THIS_MODULE, - llseek: no_llseek, - write: wdt_write, - ioctl: wdt_ioctl, - open: wdt_open, - release: wdt_release, +static const struct file_operations wdt_fops = { + .owner = THIS_MODULE, + .llseek = no_llseek, + .write = wdt_write, + .ioctl = wdt_ioctl, + .open = wdt_open, + .release = wdt_release, }; static struct miscdevice wdt_miscdev = { - minor: WATCHDOG_MINOR, - name: "watchdog", - fops: &wdt_fops, + .minor = WATCHDOG_MINOR, + .name = "watchdog", + .fops = &wdt_fops, }; static char banner[] __initdata = KERN_INFO NAME ": Watchdog Timer version " VERSION "\n";