diff options
Diffstat (limited to 'drivers/tty/ipwireless/tty.c')
| -rw-r--r-- | drivers/tty/ipwireless/tty.c | 32 |
1 files changed, 12 insertions, 20 deletions
diff --git a/drivers/tty/ipwireless/tty.c b/drivers/tty/ipwireless/tty.c index fad3401e604d..9edd5ae17580 100644 --- a/drivers/tty/ipwireless/tty.c +++ b/drivers/tty/ipwireless/tty.c @@ -54,7 +54,6 @@ struct ipw_tty { unsigned int control_lines; struct mutex ipw_tty_mutex; int tx_bytes_queued; - int closing; }; static struct ipw_tty *ttys[IPWIRELESS_PCMCIA_MINORS]; @@ -101,7 +100,6 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp) tty->port.tty = linux_tty; linux_tty->driver_data = tty; - tty->port.low_latency = 1; if (tty->tty_type == TTYTYPE_MODEM) ipwireless_ppp_open(tty->network); @@ -218,7 +216,7 @@ static int ipw_write(struct tty_struct *linux_tty, ret = ipwireless_send_packet(tty->hardware, IPW_CHANNEL_RAS, buf, count, ipw_write_packet_sent_callback, tty); - if (ret == -1) { + if (ret < 0) { mutex_unlock(&tty->ipw_tty_mutex); return 0; } @@ -229,17 +227,17 @@ static int ipw_write(struct tty_struct *linux_tty, return count; } -static int ipw_write_room(struct tty_struct *linux_tty) +static unsigned int ipw_write_room(struct tty_struct *linux_tty) { struct ipw_tty *tty = linux_tty->driver_data; int room; /* FIXME: Exactly how is the tty object locked here .. */ if (!tty) - return -ENODEV; + return 0; if (!tty->port.count) - return -EINVAL; + return 0; room = IPWIRELESS_TX_QUEUE_SIZE - tty->tx_bytes_queued; if (room < 0) @@ -271,7 +269,7 @@ static int ipwireless_set_serial_info(struct tty_struct *linux_tty, return 0; /* Keeps the PCMCIA scripts happy. */ } -static int ipw_chars_in_buffer(struct tty_struct *linux_tty) +static unsigned int ipw_chars_in_buffer(struct tty_struct *linux_tty) { struct ipw_tty *tty = linux_tty->driver_data; @@ -526,7 +524,6 @@ void ipwireless_tty_free(struct ipw_tty *tty) printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": deregistering %s device ttyIPWp%d\n", tty_type_name(ttyj->tty_type), j); - ttyj->closing = 1; if (ttyj->port.tty != NULL) { mutex_unlock(&ttyj->ipw_tty_mutex); tty_vhangup(ttyj->port.tty); @@ -567,9 +564,10 @@ int ipwireless_tty_init(void) { int result; - ipw_tty_driver = alloc_tty_driver(IPWIRELESS_PCMCIA_MINORS); - if (!ipw_tty_driver) - return -ENOMEM; + ipw_tty_driver = tty_alloc_driver(IPWIRELESS_PCMCIA_MINORS, + TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV); + if (IS_ERR(ipw_tty_driver)) + return PTR_ERR(ipw_tty_driver); ipw_tty_driver->driver_name = IPWIRELESS_PCCARD_NAME; ipw_tty_driver->name = "ttyIPWp"; @@ -577,7 +575,6 @@ int ipwireless_tty_init(void) ipw_tty_driver->minor_start = IPWIRELESS_PCMCIA_START; ipw_tty_driver->type = TTY_DRIVER_TYPE_SERIAL; ipw_tty_driver->subtype = SERIAL_TYPE_NORMAL; - ipw_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; ipw_tty_driver->init_termios = tty_std_termios; ipw_tty_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; @@ -588,7 +585,7 @@ int ipwireless_tty_init(void) if (result) { printk(KERN_ERR IPWIRELESS_PCCARD_NAME ": failed to register tty driver\n"); - put_tty_driver(ipw_tty_driver); + tty_driver_kref_put(ipw_tty_driver); return result; } @@ -597,13 +594,8 @@ int ipwireless_tty_init(void) void ipwireless_tty_release(void) { - int ret; - - ret = tty_unregister_driver(ipw_tty_driver); - put_tty_driver(ipw_tty_driver); - if (ret != 0) - printk(KERN_ERR IPWIRELESS_PCCARD_NAME - ": tty_unregister_driver failed with code %d\n", ret); + tty_unregister_driver(ipw_tty_driver); + tty_driver_kref_put(ipw_tty_driver); } int ipwireless_tty_is_modem(struct ipw_tty *tty) |