diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2012-11-15 17:18:30 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2012-11-15 17:18:30 +0100 |
| commit | cf1fb2dfa7601770037d24a328f259e2cfd97fb0 (patch) | |
| tree | 1a38c170cc73ca9fa02b69a3194f487b0c1ef55c /drivers/tty/tty_ldisc.c | |
| parent | c9b1c7b34a17742054e2b967f7c126964343e4f2 (diff) | |
| parent | 6ba54ab4a49bbad736b0254aa6bdf0cb83013815 (diff) | |
Merge branch 'omap/headers4' into next/drivers
This avoids merge conflicts between the omap header changes and the gpmc
updates.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/tty/tty_ldisc.c')
| -rw-r--r-- | drivers/tty/tty_ldisc.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c index 0f2a2c5e704..f4e6754525d 100644 --- a/drivers/tty/tty_ldisc.c +++ b/drivers/tty/tty_ldisc.c @@ -512,7 +512,7 @@ static void tty_ldisc_restore(struct tty_struct *tty, struct tty_ldisc *old) static int tty_ldisc_halt(struct tty_struct *tty) { clear_bit(TTY_LDISC, &tty->flags); - return cancel_work_sync(&tty->buf.work); + return cancel_work_sync(&tty->port->buf.work); } /** @@ -525,7 +525,7 @@ static void tty_ldisc_flush_works(struct tty_struct *tty) { flush_work(&tty->hangup_work); flush_work(&tty->SAK_work); - flush_work(&tty->buf.work); + flush_work(&tty->port->buf.work); } /** @@ -704,9 +704,9 @@ enable: /* Restart the work queue in case no characters kick it off. Safe if already running */ if (work) - schedule_work(&tty->buf.work); + schedule_work(&tty->port->buf.work); if (o_work) - schedule_work(&o_tty->buf.work); + schedule_work(&o_tty->port->buf.work); mutex_unlock(&tty->ldisc_mutex); tty_unlock(tty); return retval; @@ -817,7 +817,7 @@ void tty_ldisc_hangup(struct tty_struct *tty) */ clear_bit(TTY_LDISC, &tty->flags); tty_unlock(tty); - cancel_work_sync(&tty->buf.work); + cancel_work_sync(&tty->port->buf.work); mutex_unlock(&tty->ldisc_mutex); retry: tty_lock(tty); @@ -897,6 +897,11 @@ int tty_ldisc_setup(struct tty_struct *tty, struct tty_struct *o_tty) static void tty_ldisc_kill(struct tty_struct *tty) { + /* There cannot be users from userspace now. But there still might be + * drivers holding a reference via tty_ldisc_ref. Do not steal them the + * ldisc until they are done. */ + tty_ldisc_wait_idle(tty, MAX_SCHEDULE_TIMEOUT); + mutex_lock(&tty->ldisc_mutex); /* * Now kill off the ldisc |