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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-07-27 20:12:39 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-07-27 20:12:39 +0200 |
| commit | 92311e46ecf2298d87f175c8449ab4d8c400a38e (patch) | |
| tree | 92bfbbc23c3acfb035a88bf257849465b26aa156 /drivers/tty/n_tty.c | |
| parent | pty: Add debug message for ptmx open (diff) | |
| parent | Linux 4.2-rc4 (diff) | |
| download | linux-92311e46ecf2298d87f175c8449ab4d8c400a38e.tar.xz linux-92311e46ecf2298d87f175c8449ab4d8c400a38e.zip | |
Merge 4.2-rc4 into tty-next
Other serial driver work wants to build on patches now in 4.2-rc4 so
merge the branch so this can properly happen.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/n_tty.c')
| -rw-r--r-- | drivers/tty/n_tty.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index de67b2c88bfc..20932cc9c8f7 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -1108,19 +1108,29 @@ static void eraser(unsigned char c, struct tty_struct *tty) * Locking: ctrl_lock */ -static void isig(int sig, struct tty_struct *tty) +static void __isig(int sig, struct tty_struct *tty) { - struct n_tty_data *ldata = tty->disc_data; struct pid *tty_pgrp = tty_get_pgrp(tty); if (tty_pgrp) { kill_pgrp(tty_pgrp, sig, 1); put_pid(tty_pgrp); } +} - if (!L_NOFLSH(tty)) { +static void isig(int sig, struct tty_struct *tty) +{ + struct n_tty_data *ldata = tty->disc_data; + + if (L_NOFLSH(tty)) { + /* signal only */ + __isig(sig, tty); + + } else { /* signal and flush */ up_read(&tty->termios_rwsem); down_write(&tty->termios_rwsem); + __isig(sig, tty); + /* clear echo buffer */ mutex_lock(&ldata->output_lock); ldata->echo_head = ldata->echo_tail = 0; |