--- a/drivers/watchdog/ar71xx_wdt.c
+++ b/drivers/watchdog/ar71xx_wdt.c
@@ -197,7 +197,7 @@ static int ar71xx_wdt_ioctl(struct inode
 static const struct file_operations ar71xx_wdt_fops = {
 	.owner		= THIS_MODULE,
 	.write		= ar71xx_wdt_write,
-	.ioctl		= ar71xx_wdt_ioctl,
+	.unlocked_ioctl	= ar71xx_wdt_ioctl,
 	.open		= ar71xx_wdt_open,
 	.release	= ar71xx_wdt_release,
 };