diff options
| author | Peter Hurley <peter@hurleysoftware.com> | 2013-11-29 12:56:10 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-11 22:37:55 -0800 |
| commit | 8aa61f36bb68b7544a7c955658e29556f866bb6a (patch) | |
| tree | dff9634af64e1dad4314593841be276553429556 /drivers/tty | |
| parent | 003bd1d4842bb9a34cbd1513e19183e94323931f (diff) | |
n_tty: Fix missing newline echo
commit 39434abd942c8e4b9c14c06a03b3245beaf8467f upstream.
When L_ECHONL is on, newlines are echoed regardless of the L_ECHO
state; if set, ensure accumulated echoes are flushed before finishing
the current input processing and before more output.
Reported-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com
Tested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/n_tty.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index ff582933e94c..4d6f430087d0 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -810,7 +810,8 @@ static void process_echoes(struct tty_struct *tty) struct n_tty_data *ldata = tty->disc_data; size_t echoed; - if (!L_ECHO(tty) || ldata->echo_commit == ldata->echo_tail) + if ((!L_ECHO(tty) && !L_ECHONL(tty)) || + ldata->echo_commit == ldata->echo_tail) return; mutex_lock(&ldata->output_lock); @@ -825,7 +826,8 @@ static void flush_echoes(struct tty_struct *tty) { struct n_tty_data *ldata = tty->disc_data; - if (!L_ECHO(tty) || ldata->echo_commit == ldata->echo_head) + if ((!L_ECHO(tty) && !L_ECHONL(tty)) || + ldata->echo_commit == ldata->echo_head) return; mutex_lock(&ldata->output_lock); |