dsa: mv88e6xxx: Include tagger overhead when setting MTU for DSA and CPU ports

[linux.git] / drivers / tty / n_hdlc.c

diff --git a/drivers/tty/n_hdlc.c b/drivers/tty/n_hdlc.c
index 2256039911f575e50721c377653140f9377befba..580a37b3fe1b9bc7d3dfce0d656e49aec5e58d29 100644 (file)
--- a/drivers/tty/n_hdlc.c
+++ b/drivers/tty/n_hdlc.c
@@ -411,8 +411,10 @@ static void n_hdlc_tty_receive(struct tty_struct *tty, const __u8 *data,
  * n_hdlc_tty_read - Called to retrieve one frame of data (if available)
  * @tty: pointer to tty instance data
  * @file: pointer to open file object
- * @buf: pointer to returned data buffer
+ * @kbuf: pointer to returned data buffer
  * @nr: size of returned data buffer
+ * @cookie: stored rbuf from previous run
+ * @offset: offset into the data buffer
  *
  * Returns the number of bytes returned or error code.
  */
@@ -822,14 +824,7 @@ static int __init n_hdlc_init(void)
 
 static void __exit n_hdlc_exit(void)
 {
-       /* Release tty registration of line discipline */
-       int status = tty_unregister_ldisc(N_HDLC);
-
-       if (status)
-               pr_err("N_HDLC: can't unregister line discipline (err = %d)\n",
-                               status);
-       else
-               pr_info("N_HDLC: line discipline unregistered\n");
+       tty_unregister_ldisc(&n_hdlc_ldisc);
 }
 
 module_init(n_hdlc_init);