diff options
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/cyclades.c | 10 | ||||
| -rw-r--r-- | drivers/tty/moxa.c | 19 | ||||
| -rw-r--r-- | drivers/tty/n_gsm.c | 6 | ||||
| -rw-r--r-- | drivers/tty/nozomi.c | 9 | ||||
| -rw-r--r-- | drivers/tty/rocket.c | 7 | ||||
| -rw-r--r-- | drivers/tty/serial/ifx6x60.c | 21 | ||||
| -rw-r--r-- | drivers/tty/tty_port.c | 17 |
7 files changed, 32 insertions, 57 deletions
diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c index 345bd0e0884e..33f83fee9fae 100644 --- a/drivers/tty/cyclades.c +++ b/drivers/tty/cyclades.c @@ -1124,14 +1124,8 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo) readl(&info->u.cyz.ch_ctrl->rs_status); if (dcd & C_RS_DCD) wake_up_interruptible(&info->port.open_wait); - else { - struct tty_struct *tty; - tty = tty_port_tty_get(&info->port); - if (tty) { - tty_hangup(tty); - tty_kref_put(tty); - } - } + else + tty_port_tty_hangup(&info->port, false); } break; case C_CM_MCTS: diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c index adeac255e526..1deaca4674e4 100644 --- a/drivers/tty/moxa.c +++ b/drivers/tty/moxa.c @@ -913,16 +913,12 @@ static void moxa_board_deinit(struct moxa_board_conf *brd) /* pci hot-un-plug support */ for (a = 0; a < brd->numPorts; a++) - if (brd->ports[a].port.flags & ASYNC_INITIALIZED) { - struct tty_struct *tty = tty_port_tty_get( - &brd->ports[a].port); - if (tty) { - tty_hangup(tty); - tty_kref_put(tty); - } - } + if (brd->ports[a].port.flags & ASYNC_INITIALIZED) + tty_port_tty_hangup(&brd->ports[a].port, false); + for (a = 0; a < MAX_PORTS_PER_BOARD; a++) tty_port_destroy(&brd->ports[a].port); + while (1) { opened = 0; for (a = 0; a < brd->numPorts; a++) @@ -1365,7 +1361,6 @@ static void moxa_hangup(struct tty_struct *tty) static void moxa_new_dcdstate(struct moxa_port *p, u8 dcd) { - struct tty_struct *tty; unsigned long flags; dcd = !!dcd; @@ -1373,10 +1368,8 @@ static void moxa_new_dcdstate(struct moxa_port *p, u8 dcd) if (dcd != p->DCDState) { p->DCDState = dcd; spin_unlock_irqrestore(&p->port.lock, flags); - tty = tty_port_tty_get(&p->port); - if (tty && !C_CLOCAL(tty) && !dcd) - tty_hangup(tty); - tty_kref_put(tty); + if (!dcd) + tty_port_tty_hangup(&p->port, true); } else spin_unlock_irqrestore(&p->port.lock, flags); diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 4a43ef5d7962..74d9a0258d7c 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -1418,11 +1418,7 @@ static void gsm_dlci_close(struct gsm_dlci *dlci) pr_debug("DLCI %d goes closed.\n", dlci->addr); dlci->state = DLCI_CLOSED; if (dlci->addr != 0) { - struct tty_struct *tty = tty_port_tty_get(&dlci->port); - if (tty) { - tty_hangup(tty); - tty_kref_put(tty); - } + tty_port_tty_hangup(&dlci->port, false); kfifo_reset(dlci->fifo); } else dlci->gsm->dead = 1; diff --git a/drivers/tty/nozomi.c b/drivers/tty/nozomi.c index 2e5bbdc09e1c..d6080c3831ef 100644 --- a/drivers/tty/nozomi.c +++ b/drivers/tty/nozomi.c @@ -1501,12 +1501,9 @@ static void tty_exit(struct nozomi *dc) DBG1(" "); - for (i = 0; i < MAX_PORT; ++i) { - struct tty_struct *tty = tty_port_tty_get(&dc->port[i].port); - if (tty && list_empty(&tty->hangup_work.entry)) - tty_hangup(tty); - tty_kref_put(tty); - } + for (i = 0; i < MAX_PORT; ++i) + tty_port_tty_hangup(&dc->port[i].port, false); + /* Racy below - surely should wait for scheduled work to be done or complete off a hangup method ? */ while (dc->open_ttys) diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c index 1d270034bfc3..bbffd7a431e9 100644 --- a/drivers/tty/rocket.c +++ b/drivers/tty/rocket.c @@ -521,15 +521,10 @@ static void rp_handle_port(struct r_port *info) (ChanStatus & CD_ACT) ? "on" : "off"); #endif if (!(ChanStatus & CD_ACT) && info->cd_status) { - struct tty_struct *tty; #ifdef ROCKET_DEBUG_HANGUP printk(KERN_INFO "CD drop, calling hangup.\n"); #endif - tty = tty_port_tty_get(&info->port); - if (tty) { - tty_hangup(tty); - tty_kref_put(tty); - } + tty_port_tty_hangup(&info->port, false); } info->cd_status = (ChanStatus & CD_ACT) ? 1 : 0; wake_up_interruptible(&info->port.open_wait); diff --git a/drivers/tty/serial/ifx6x60.c b/drivers/tty/serial/ifx6x60.c index d723d4193b90..2c77fed31a72 100644 --- a/drivers/tty/serial/ifx6x60.c +++ b/drivers/tty/serial/ifx6x60.c @@ -270,23 +270,6 @@ static void mrdy_assert(struct ifx_spi_device *ifx_dev) } /** - * ifx_spi_hangup - hang up an IFX device - * @ifx_dev: our SPI device - * - * Hang up the tty attached to the IFX device if one is currently - * open. If not take no action - */ -static void ifx_spi_ttyhangup(struct ifx_spi_device *ifx_dev) -{ - struct tty_port *pport = &ifx_dev->tty_port; - struct tty_struct *tty = tty_port_tty_get(pport); - if (tty) { - tty_hangup(tty); - tty_kref_put(tty); - } -} - -/** * ifx_spi_timeout - SPI timeout * @arg: our SPI device * @@ -298,7 +281,7 @@ static void ifx_spi_timeout(unsigned long arg) struct ifx_spi_device *ifx_dev = (struct ifx_spi_device *)arg; dev_warn(&ifx_dev->spi_dev->dev, "*** SPI Timeout ***"); - ifx_spi_ttyhangup(ifx_dev); + tty_port_tty_hangup(&ifx_dev->tty_port, false); mrdy_set_low(ifx_dev); clear_bit(IFX_SPI_STATE_TIMER_PENDING, &ifx_dev->flags); } @@ -933,7 +916,7 @@ static irqreturn_t ifx_spi_reset_interrupt(int irq, void *dev) set_bit(MR_INPROGRESS, &ifx_dev->mdm_reset_state); if (!solreset) { /* unsolicited reset */ - ifx_spi_ttyhangup(ifx_dev); + tty_port_tty_hangup(&ifx_dev->tty_port, false); } } else { /* exited reset */ diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c index 8bb757c62ee2..7f38eeaafac3 100644 --- a/drivers/tty/tty_port.c +++ b/drivers/tty/tty_port.c @@ -233,6 +233,23 @@ void tty_port_hangup(struct tty_port *port) EXPORT_SYMBOL(tty_port_hangup); /** + * tty_port_tty_hangup - helper to hang up a tty + * + * @port: tty port + * @check_clocal: hang only ttys with CLOCAL unset? + */ +void tty_port_tty_hangup(struct tty_port *port, bool check_clocal) +{ + struct tty_struct *tty = tty_port_tty_get(port); + + if (tty && (!check_clocal || !C_CLOCAL(tty))) { + tty_hangup(tty); + tty_kref_put(tty); + } +} +EXPORT_SYMBOL_GPL(tty_port_tty_hangup); + +/** * tty_port_tty_wakeup - helper to wake up a tty * * @port: tty port |