diff options
| author | Peter Hurley <peter@hurleysoftware.com> | 2013-07-24 08:29:50 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-07-24 09:26:51 -0700 |
| commit | 855df3c08968beac9d9a86536c43c0474684ac37 (patch) | |
| tree | fef57ab15c274b68e4ab1a1739fbcd1c77cb1883 | |
| parent | 7d88d637a3c75257b7611f9feee0c17fa187ecc9 (diff) | |
n_tty: Eliminate char tests from IXANY restart test
Relocate the IXANY restart tty test to code paths where the
the received char is not START_CHAR, STOP_CHAR, INTR_CHAR,
QUIT_CHAR or SUSP_CHAR.
Fixes the condition when ISIG if off and one of INTR_CHAR,
QUIT_CHAR or SUSP_CHAR does not restart i/o.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/n_tty.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 951ecfeed8d3..f2e6bdb319cf 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -1270,13 +1270,6 @@ static inline void n_tty_receive_char(struct tty_struct *tty, unsigned char c) return; } - if (tty->stopped && !tty->flow_stopped && I_IXON(tty) && - I_IXANY(tty) && c != START_CHAR(tty) && c != STOP_CHAR(tty) && - c != INTR_CHAR(tty) && c != QUIT_CHAR(tty) && c != SUSP_CHAR(tty)) { - start_tty(tty); - process_echoes(tty); - } - /* * If the previous character was LNEXT, or we know that this * character is not one of the characters that we'll have to @@ -1285,6 +1278,13 @@ static inline void n_tty_receive_char(struct tty_struct *tty, unsigned char c) */ if (!test_bit(c, ldata->char_map) || ldata->lnext) { ldata->lnext = 0; + + if (tty->stopped && !tty->flow_stopped && I_IXON(tty) && + I_IXANY(tty)) { + start_tty(tty); + process_echoes(tty); + } + parmrk = (c == (unsigned char) '\377' && I_PARMRK(tty)) ? 1 : 0; if (read_cnt(ldata) >= (N_TTY_BUF_SIZE - parmrk - 1)) { /* beep if no space */ @@ -1331,6 +1331,11 @@ static inline void n_tty_receive_char(struct tty_struct *tty, unsigned char c) } } + if (tty->stopped && !tty->flow_stopped && I_IXON(tty) && I_IXANY(tty)) { + start_tty(tty); + process_echoes(tty); + } + if (c == '\r') { if (I_IGNCR(tty)) return; |