BACKPORT: Input: mark input interfaces as non-seekable

drivers/input/joydev.c

 /*
  * Joystick device driver for the input driver suite.
  *
  * Copyright (c) 1999-2002 Vojtech Pavlik
  * Copyright (c) 1999 Colin Van Dyke
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
@@ skipping 268 matching lines @@
 
         spin_lock_init(&client->buffer_lock);
         client->joydev = joydev;
         joydev_attach_client(joydev, client);
 
         error = joydev_open_device(joydev);
         if (error)
                 goto err_free_client;
 
         file->private_data = client;
+        nonseekable_open(inode, file);
+
         return 0;
 
  err_free_client:
         joydev_detach_client(joydev, client);
         kfree(client);
  err_put_joydev:
         put_device(&joydev->dev);
         return error;
 }
 
@@ skipping 654 matching lines @@
         return input_register_handler(&joydev_handler);
 }
 
 static void __exit joydev_exit(void)
 {
         input_unregister_handler(&joydev_handler);
 }
 
 module_init(joydev_init);
 module_exit(joydev_exit);