diff options
Diffstat (limited to 'drivers/tty/tty_io.c')
| -rw-r--r-- | drivers/tty/tty_io.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 45876341870..95e97128e2e 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -1510,6 +1510,17 @@ void tty_free_termios(struct tty_struct *tty) } EXPORT_SYMBOL(tty_free_termios); +/** + * tty_flush_works - flush all works of a tty + * @tty: tty device to flush works for + * + * Sync flush all works belonging to @tty. + */ +static void tty_flush_works(struct tty_struct *tty) +{ + flush_work(&tty->SAK_work); + flush_work(&tty->hangup_work); +} /** * release_one_tty - release tty structure memory @@ -1831,6 +1842,12 @@ int tty_release(struct inode *inode, struct file *filp) * Ask the line discipline code to release its structures */ tty_ldisc_release(tty, o_tty); + + /* Wait for pending work before tty destruction commmences */ + tty_flush_works(tty); + if (o_tty) + tty_flush_works(o_tty); + /* * The release_tty function takes care of the details of clearing * the slots and preserving the termios structure. The tty_unlock_pair |