diff --git a/drivers/watchdog/geodewdt.c b/drivers/watchdog/geodewdt.c
index 614a5c7..6799a6d 100644
--- a/drivers/watchdog/geodewdt.c
+++ b/drivers/watchdog/geodewdt.c
@@ -130,8 +130,8 @@
 	return len;
 }
 
-static int geodewdt_ioctl(struct inode *inode, struct file *file,
-				unsigned int cmd, unsigned long arg)
+static long geodewdt_ioctl(struct file *file, unsigned int cmd,
+				unsigned long arg)
 {
 	void __user *argp = (void __user *)arg;
 	int __user *p = argp;
@@ -198,7 +198,7 @@
 	.owner          = THIS_MODULE,
 	.llseek         = no_llseek,
 	.write          = geodewdt_write,
-	.ioctl          = geodewdt_ioctl,
+	.unlocked_ioctl = geodewdt_ioctl,
 	.open           = geodewdt_open,
 	.release        = geodewdt_release,
 };
diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
index 0ed8416..6d9f3d4 100644
--- a/drivers/watchdog/pnx4008_wdt.c
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -173,8 +173,8 @@
 	.identity = "PNX4008 Watchdog",
 };
 
-static long pnx4008_wdt_ioctl(struct inode *inode, struct file *file,
-					unsigned int cmd, unsigned long arg)
+static long pnx4008_wdt_ioctl(struct file *file, unsigned int cmd,
+				unsigned long arg)
 {
 	int ret = -ENOTTY;
 	int time;
diff --git a/drivers/watchdog/rc32434_wdt.c b/drivers/watchdog/rc32434_wdt.c
index 6756bcb..c9c73b6 100644
--- a/drivers/watchdog/rc32434_wdt.c
+++ b/drivers/watchdog/rc32434_wdt.c
@@ -182,8 +182,8 @@
 	return 0;
 }
 
-static int rc32434_wdt_ioctl(struct inode *inode, struct file *file,
-	unsigned int cmd, unsigned long arg)
+static long rc32434_wdt_ioctl(struct file *file, unsigned int cmd,
+				unsigned long arg)
 {
 	void __user *argp = (void __user *)arg;
 	int new_timeout;
@@ -242,7 +242,7 @@
 	.owner		= THIS_MODULE,
 	.llseek		= no_llseek,
 	.write		= rc32434_wdt_write,
-	.ioctl		= rc32434_wdt_ioctl,
+	.unlocked_ioctl	= rc32434_wdt_ioctl,
 	.open		= rc32434_wdt_open,
 	.release	= rc32434_wdt_release,
 };
diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c
index 9108efa..bf92802 100644
--- a/drivers/watchdog/rdc321x_wdt.c
+++ b/drivers/watchdog/rdc321x_wdt.c
@@ -144,8 +144,8 @@
 	return 0;
 }
 
-static int rdc321x_wdt_ioctl(struct inode *inode, struct file *file,
-				unsigned int cmd, unsigned long arg)
+static long rdc321x_wdt_ioctl(struct file *file, unsigned int cmd,
+				unsigned long arg)
 {
 	void __user *argp = (void __user *)arg;
 	unsigned int value;
@@ -204,7 +204,7 @@
 static const struct file_operations rdc321x_wdt_fops = {
 	.owner		= THIS_MODULE,
 	.llseek		= no_llseek,
-	.ioctl		= rdc321x_wdt_ioctl,
+	.unlocked_ioctl	= rdc321x_wdt_ioctl,
 	.open		= rdc321x_wdt_open,
 	.write		= rdc321x_wdt_write,
 	.release	= rdc321x_wdt_release,
diff --git a/drivers/watchdog/wdt285.c b/drivers/watchdog/wdt285.c
index db362c3..191ea63 100644
--- a/drivers/watchdog/wdt285.c
+++ b/drivers/watchdog/wdt285.c
@@ -115,8 +115,8 @@
 	return 0;
 }
 
-static ssize_t watchdog_write(struct file *file, const char *data,
-						size_t len, loff_t *ppos)
+static ssize_t watchdog_write(struct file *file, const char __user *data,
+			      size_t len, loff_t *ppos)
 {
 	/*
 	 *	Refresh the timer.
@@ -133,21 +133,22 @@
 };
 
 static long watchdog_ioctl(struct file *file, unsigned int cmd,
-							unsigned long arg)
+			   unsigned long arg)
 {
 	unsigned int new_margin;
+	int __user *int_arg = (int __user *)arg;
 	int ret = -ENOTTY;
 
 	switch (cmd) {
 	case WDIOC_GETSUPPORT:
 		ret = 0;
-		if (copy_to_user((void *)arg, &ident, sizeof(ident)))
+		if (copy_to_user((void __user *)arg, &ident, sizeof(ident)))
 			ret = -EFAULT;
 		break;
 
 	case WDIOC_GETSTATUS:
 	case WDIOC_GETBOOTSTATUS:
-		ret = put_user(0, (int *)arg);
+		ret = put_user(0, int_arg);
 		break;
 
 	case WDIOC_KEEPALIVE:
@@ -156,7 +157,7 @@
 		break;
 
 	case WDIOC_SETTIMEOUT:
-		ret = get_user(new_margin, (int *)arg);
+		ret = get_user(new_margin, int_arg);
 		if (ret)
 			break;
 
@@ -171,7 +172,7 @@
 		watchdog_ping();
 		/* Fall */
 	case WDIOC_GETTIMEOUT:
-		ret = put_user(soft_margin, (int *)arg);
+		ret = put_user(soft_margin, int_arg);
 		break;
 	}
 	return ret;