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n_tty: Correct unthrottle-with-buffer-flush comments

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

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley 2013-03-11 16:44:31 -04:00 committed by Greg Kroah-Hartman
parent 977066e758
commit 25518c68b3
1 changed files with 5 additions and 8 deletions
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13
drivers/tty/n_tty.c
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@ -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)