+static int mousedev_install_chrdev(struct mousedev *mousedev)
+{
+ mousedev_table[mousedev->minor] = mousedev;
+ return 0;
+}
+
+static void mousedev_remove_chrdev(struct mousedev *mousedev)
+{
+ mutex_lock(&mousedev_table_mutex);
+ mousedev_table[mousedev->minor] = NULL;
+ mutex_unlock(&mousedev_table_mutex);
+}
+
+/*
+ * Mark device non-existent. This disables writes, ioctls and
+ * prevents new users from opening the device. Already posted
+ * blocking reads will stay, however new ones will fail.
+ */
+static void mousedev_mark_dead(struct mousedev *mousedev)
+{
+ mutex_lock(&mousedev->mutex);
+ mousedev->exist = 0;
+ mutex_unlock(&mousedev->mutex);
+}
+
+/*
+ * Wake up users waiting for IO so they can disconnect from
+ * dead device.
+ */
+static void mousedev_hangup(struct mousedev *mousedev)
+{
+ struct mousedev_client *client;
+
+ spin_lock(&mousedev->client_lock);
+ list_for_each_entry(client, &mousedev->client_list, node)
+ kill_fasync(&client->fasync, SIGIO, POLL_HUP);
+ spin_unlock(&mousedev->client_lock);
+
+ wake_up_interruptible(&mousedev->wait);
+}
+
+static void mousedev_cleanup(struct mousedev *mousedev)
+{
+ struct input_handle *handle = &mousedev->handle;
+
+ mousedev_mark_dead(mousedev);
+ mousedev_hangup(mousedev);
+ mousedev_remove_chrdev(mousedev);
+
+ /* mousedev is marked dead so no one else accesses mousedev->open */
+ if (mousedev->open)
+ input_close_device(handle);
+}
+
+static struct mousedev *mousedev_create(struct input_dev *dev,
+ struct input_handler *handler,
+ int minor)