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| author | Mark Brown <broonie@kernel.org> | 2018-12-11 23:44:49 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-12-11 23:44:49 +0300 |
| commit | e6202e8249aa7115af65f2d80b43c132816224ef (patch) | |
| tree | 8865dd722ad55bb5e6bd5d446057395336ed0169 /drivers/tty/tty_io.c | |
| parent | 2b96edb570709d6ca2e06842941c4bdf04b55f47 (diff) | |
| parent | d407c81adae57041ba82577e604e351f36b8afce (diff) | |
| download | linux-e6202e8249aa7115af65f2d80b43c132816224ef.tar.xz | |
Merge branch 'for-linus' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-4.21
Diffstat (limited to 'drivers/tty/tty_io.c')
| -rw-r--r-- | drivers/tty/tty_io.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index ee80dfbd5442..687250ec8032 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -1373,7 +1373,13 @@ err_release_lock: return ERR_PTR(retval); } -static void tty_free_termios(struct tty_struct *tty) +/** + * tty_save_termios() - save tty termios data in driver table + * @tty: tty whose termios data to save + * + * Locking: Caller guarantees serialisation with tty_init_termios(). + */ +void tty_save_termios(struct tty_struct *tty) { struct ktermios *tp; int idx = tty->index; @@ -1392,6 +1398,7 @@ static void tty_free_termios(struct tty_struct *tty) } *tp = tty->termios; } +EXPORT_SYMBOL_GPL(tty_save_termios); /** * tty_flush_works - flush all works of a tty/pty pair @@ -1491,7 +1498,7 @@ static void release_tty(struct tty_struct *tty, int idx) WARN_ON(!mutex_is_locked(&tty_mutex)); if (tty->ops->shutdown) tty->ops->shutdown(tty); - tty_free_termios(tty); + tty_save_termios(tty); tty_driver_remove_tty(tty->driver, tty); tty->port->itty = NULL; if (tty->link) |