Commit 25518c68 authored by Peter Hurley's avatar Peter Hurley Committed by Greg Kroah-Hartman
Browse files

n_tty: Correct unthrottle-with-buffer-flush comments 



The driver is no longer unthrottled on buffer reset, so remove
comments that claim it is.

Signed-off-by: default avatarPeter Hurley <peter@hurleysoftware.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 977066e7

drivers/tty/n_tty.c

+5 −8
Original line number Diff line number Diff line
@@ -198,9 +198,8 @@ static void put_tty_queue(unsigned char c, struct n_tty_data *ldata) 
 *	reset_buffer_flags	-	reset buffer state

 *	@tty: terminal to reset

 *

 *	Reset the read buffer counters, clear the flags,

 *	and make sure the driver is unthrottled. Called

 *	from n_tty_open() and n_tty_flush_buffer().

 *	Reset the read buffer counters and clear the flags.

 *	Called from n_tty_open() and n_tty_flush_buffer().

 *

 *	Locking: tty_read_lock for read fields.

 */
@@ -239,17 +238,15 @@ static void n_tty_packet_mode_flush(struct tty_struct *tty) 
 *	n_tty_flush_buffer	-	clean input queue

 *	@tty:	terminal device

 *

 *	Flush the input buffer. Called when the line discipline is

 *	being closed, when the tty layer wants the buffer flushed (eg

 *	at hangup) or when the N_TTY line discipline internally has to

 *	clean the pending queue (for example some signals).

 *	Flush the input buffer. Called when the tty layer wants the

 *	buffer flushed (eg at hangup) or when the N_TTY line discipline

 *	internally has to clean the pending queue (for example some signals).

 *

 *	Locking: ctrl_lock, read_lock.

 */



static void n_tty_flush_buffer(struct tty_struct *tty)

{

	/* clear everything and unthrottle the driver */

	reset_buffer_flags(tty);



	if (tty->link)