--- vhba.c.orig	2010-10-22 23:16:21.896084497 +0200
+++ vhba.c	2010-10-22 23:17:38.150243713 +0200
@@ -672,7 +672,7 @@ static ssize_t vhba_ctl_write(struct fil
         return ret;
 }
 
-static int vhba_ctl_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static long vhba_ctl_unlocked_ioctl (struct file *file, unsigned int cmd, unsigned long arg)
 {
         struct vhba_device *vdev = file->private_data;
         struct vhba_host *vhost;
@@ -782,7 +782,7 @@ static struct file_operations vhba_ctl_f
         .read = vhba_ctl_read,
         .write = vhba_ctl_write,
         .poll = vhba_ctl_poll,
-        .ioctl = vhba_ctl_ioctl,
+        .unlocked_ioctl = vhba_ctl_unlocked_ioctl,
 };
 
 static struct miscdevice vhba_miscdev = {