1 files changed, 6 insertions, 33 deletions
diff --git a/arch/um/drivers/harddog_kern.c b/arch/um/drivers/harddog_kern.c
index 2d0266d0254d..819aabb4ecdc 100644
--- a/arch/um/drivers/harddog_kern.c
+++ b/arch/um/drivers/harddog_kern.c
@@ -45,9 +45,11 @@
 #include <linux/mutex.h>
 #include <linux/init.h>
 #include <linux/spinlock.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include "mconsole.h"
+#include "harddog.h"
 
+MODULE_DESCRIPTION("UML hardware watchdog");
 MODULE_LICENSE("GPL");
 
 static DEFINE_MUTEX(harddog_mutex);
@@ -60,8 +62,6 @@ static int harddog_out_fd = -1;
  *	Allow only one person to hold it open
  */
 
-extern int start_watchdog(int *in_fd_ret, int *out_fd_ret, char *sock);
-
 static int harddog_open(struct inode *inode, struct file *file)
 {
 	int err = -EBUSY;
@@ -85,15 +85,13 @@ static int harddog_open(struct inode *inode, struct file *file)
 	timer_alive = 1;
 	spin_unlock(&lock);
 	mutex_unlock(&harddog_mutex);
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 err:
 	spin_unlock(&lock);
 	mutex_unlock(&harddog_mutex);
 	return err;
 }
 
-extern void stop_watchdog(int in_fd, int out_fd);
-
 static int harddog_release(struct inode *inode, struct file *file)
 {
 	/*
@@ -112,8 +110,6 @@ static int harddog_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
-extern int ping_watchdog(int fd);
-
 static ssize_t harddog_write(struct file *file, const char __user *data, size_t len,
 			     loff_t *ppos)
 {
@@ -165,9 +161,9 @@ static const struct file_operations harddog_fops = {
 	.owner		= THIS_MODULE,
 	.write		= harddog_write,
 	.unlocked_ioctl	= harddog_ioctl,
+	.compat_ioctl	= compat_ptr_ioctl,
 	.open		= harddog_open,
 	.release	= harddog_release,
-	.llseek		= no_llseek,
 };
 
 static struct miscdevice harddog_miscdev = {
@@ -175,27 +171,4 @@ static struct miscdevice harddog_miscdev = {
 	.name		= "watchdog",
 	.fops		= &harddog_fops,
 };
-
-static char banner[] __initdata = KERN_INFO "UML Watchdog Timer\n";
-
-static int __init harddog_init(void)
-{
-	int ret;
-
-	ret = misc_register(&harddog_miscdev);
-
-	if (ret)
-		return ret;
-
-	printk(banner);
-
-	return 0;
-}
-
-static void __exit harddog_exit(void)
-{
-	misc_deregister(&harddog_miscdev);
-}
-
-module_init(harddog_init);
-module_exit(harddog_exit);
+module_misc_device(harddog_miscdev);