From 76f82a7ab3a724791d184e74529e96ad6947a98f Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Mon, 30 Jan 2012 21:14:29 +0100 Subject: USB: serial, use tty_standard_install But before that we need to reorder the calls so that we don't need to lower the reference counts if usb_autopm_get_interface fails. Signed-off-by: Jiri Slaby Cc: Alan Cox Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/usb-serial.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) (limited to 'drivers/usb') diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 611b206591cb..1e30cc92719c 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -214,15 +214,14 @@ static int serial_install(struct tty_driver *driver, struct tty_struct *tty) if (!try_module_get(serial->type->driver.owner)) goto error_module_get; - /* perform the standard setup */ - retval = tty_init_termios(tty); - if (retval) - goto error_init_termios; - retval = usb_autopm_get_interface(serial->interface); if (retval) goto error_get_interface; + retval = tty_standard_install(driver, tty); + if (retval) + goto error_init_termios; + mutex_unlock(&serial->disc_mutex); /* allow the driver to update the settings */ @@ -231,14 +230,11 @@ static int serial_install(struct tty_driver *driver, struct tty_struct *tty) tty->driver_data = port; - /* Final install (we use the default method) */ - tty_driver_kref_get(driver); - tty->count++; - driver->ttys[idx] = tty; return retval; - error_get_interface: error_init_termios: + usb_autopm_put_interface(serial->interface); + error_get_interface: module_put(serial->type->driver.owner); error_module_get: error_no_port: -- cgit v1.2.3-59-g8ed1b From f8a8c10f4a662dcf3cb621d7a3eba564c5963284 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Mon, 5 Mar 2012 14:51:48 +0100 Subject: USB: cdc-acm, use tty_standard_install This is a piece I missed the last time. Do not copy the functionality all over the tree. Instead, use the helper the tty layer provides us with. Signed-off-by: Jiri Slaby Acked-by: Oliver Neukum Acked-by: Alan Cox Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-acm.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'drivers/usb') diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 9543b19d410c..11a1130319d1 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -508,17 +508,12 @@ static int acm_tty_install(struct tty_driver *driver, struct tty_struct *tty) if (!acm) return -ENODEV; - retval = tty_init_termios(tty); + retval = tty_standard_install(driver, tty); if (retval) goto error_init_termios; tty->driver_data = acm; - /* Final install (we use the default method) */ - tty_driver_kref_get(driver); - tty->count++; - driver->ttys[tty->index] = tty; - return 0; error_init_termios: -- cgit v1.2.3-59-g8ed1b From 2f16669d322e05171c9e1cfd94f402f7399bd2a3 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Mon, 5 Mar 2012 14:51:52 +0100 Subject: TTY: remove re-assignments to tty_driver members All num, magic and owner are set by alloc_tty_driver. No need to re-set them on each allocation site. pti driver sets something different to what it passes to alloc_tty_driver. It is not a bug, since we don't use the lines parameter in any way. Anyway this is fixed, and now we do the right thing. Signed-off-by: Jiri Slaby Acked-by: Tilman Schmidt Signed-off-by: Greg Kroah-Hartman --- arch/ia64/hp/sim/simserial.c | 1 - arch/m68k/emu/nfcon.c | 1 - arch/xtensa/platforms/iss/console.c | 1 - drivers/char/pcmcia/synclink_cs.c | 1 - drivers/char/ttyprintk.c | 2 -- drivers/isdn/capi/capi.c | 1 - drivers/isdn/gigaset/interface.c | 7 +------ drivers/misc/pti.c | 5 +---- drivers/mmc/card/sdio_uart.c | 1 - drivers/net/usb/hso.c | 2 -- drivers/s390/char/con3215.c | 1 - drivers/s390/char/sclp_tty.c | 1 - drivers/s390/char/sclp_vt220.c | 1 - drivers/s390/char/tty3270.c | 1 - drivers/tty/amiserial.c | 1 - drivers/tty/bfin_jtag_comm.c | 1 - drivers/tty/cyclades.c | 1 - drivers/tty/ehv_bytechan.c | 1 - drivers/tty/hvc/hvc_console.c | 1 - drivers/tty/hvc/hvcs.c | 2 -- drivers/tty/hvc/hvsi.c | 1 - drivers/tty/ipwireless/tty.c | 1 - drivers/tty/isicom.c | 1 - drivers/tty/moxa.c | 1 - drivers/tty/mxser.c | 3 --- drivers/tty/n_gsm.c | 1 - drivers/tty/nozomi.c | 1 - drivers/tty/pty.c | 4 ---- drivers/tty/rocket.c | 1 - drivers/tty/serial/ifx6x60.c | 3 --- drivers/tty/serial/msm_smd_tty.c | 1 - drivers/tty/serial/serial_core.c | 1 - drivers/tty/synclink.c | 1 - drivers/tty/synclink_gt.c | 1 - drivers/tty/synclinkmp.c | 1 - drivers/tty/vt/vt.c | 2 +- drivers/usb/class/cdc-acm.c | 1 - drivers/usb/gadget/u_serial.c | 1 - drivers/usb/serial/usb-serial.c | 1 - net/bluetooth/rfcomm/tty.c | 1 - net/irda/ircomm/ircomm_tty.c | 1 - 41 files changed, 3 insertions(+), 59 deletions(-) (limited to 'drivers/usb') diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c index bff0824cf8a4..f513dc02bb87 100644 --- a/arch/ia64/hp/sim/simserial.c +++ b/arch/ia64/hp/sim/simserial.c @@ -928,7 +928,6 @@ simrs_init (void) /* Initialize the tty_driver structure */ - hp_simserial_driver->owner = THIS_MODULE; hp_simserial_driver->driver_name = "simserial"; hp_simserial_driver->name = "ttyS"; hp_simserial_driver->major = TTY_MAJOR; diff --git a/arch/m68k/emu/nfcon.c b/arch/m68k/emu/nfcon.c index ab20dc0ff63b..8db25e806947 100644 --- a/arch/m68k/emu/nfcon.c +++ b/arch/m68k/emu/nfcon.c @@ -127,7 +127,6 @@ static int __init nfcon_init(void) if (!nfcon_tty_driver) return -ENOMEM; - nfcon_tty_driver->owner = THIS_MODULE; nfcon_tty_driver->driver_name = "nfcon"; nfcon_tty_driver->name = "nfcon"; nfcon_tty_driver->type = TTY_DRIVER_TYPE_SYSTEM; diff --git a/arch/xtensa/platforms/iss/console.c b/arch/xtensa/platforms/iss/console.c index 2c723e8b30da..247e9d40a52e 100644 --- a/arch/xtensa/platforms/iss/console.c +++ b/arch/xtensa/platforms/iss/console.c @@ -216,7 +216,6 @@ int __init rs_init(void) /* Initialize the tty_driver structure */ - serial_driver->owner = THIS_MODULE; serial_driver->driver_name = "iss_serial"; serial_driver->name = "ttyS"; serial_driver->major = TTY_MAJOR; diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c index 07f6a5abe372..c3bcb1221e6b 100644 --- a/drivers/char/pcmcia/synclink_cs.c +++ b/drivers/char/pcmcia/synclink_cs.c @@ -2836,7 +2836,6 @@ static int __init synclink_cs_init(void) /* Initialize the tty_driver structure */ - serial_driver->owner = THIS_MODULE; serial_driver->driver_name = "synclink_cs"; serial_driver->name = "ttySLP"; serial_driver->major = ttymajor; diff --git a/drivers/char/ttyprintk.c b/drivers/char/ttyprintk.c index eedd5474850c..46b77ede84c0 100644 --- a/drivers/char/ttyprintk.c +++ b/drivers/char/ttyprintk.c @@ -184,12 +184,10 @@ static int __init ttyprintk_init(void) if (!ttyprintk_driver) return ret; - ttyprintk_driver->owner = THIS_MODULE; ttyprintk_driver->driver_name = "ttyprintk"; ttyprintk_driver->name = "ttyprintk"; ttyprintk_driver->major = TTYAUX_MAJOR; ttyprintk_driver->minor_start = 3; - ttyprintk_driver->num = 1; ttyprintk_driver->type = TTY_DRIVER_TYPE_CONSOLE; ttyprintk_driver->init_termios = tty_std_termios; ttyprintk_driver->init_termios.c_oflag = OPOST | OCRNL | ONOCR | ONLRET; diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c index 94948be5d366..baf08eba495c 100644 --- a/drivers/isdn/capi/capi.c +++ b/drivers/isdn/capi/capi.c @@ -1287,7 +1287,6 @@ static int __init capinc_tty_init(void) kfree(capiminors); return -ENOMEM; } - drv->owner = THIS_MODULE; drv->driver_name = "capi_nc"; drv->name = "capi"; drv->major = 0; diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c index ee0a549a933a..648260b07f1a 100644 --- a/drivers/isdn/gigaset/interface.c +++ b/drivers/isdn/gigaset/interface.c @@ -669,17 +669,15 @@ EXPORT_SYMBOL_GPL(gigaset_if_receive); void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname, const char *devname) { - unsigned minors = drv->minors; int ret; struct tty_driver *tty; drv->have_tty = 0; - drv->tty = tty = alloc_tty_driver(minors); + drv->tty = tty = alloc_tty_driver(drv->minors); if (tty == NULL) goto enomem; - tty->magic = TTY_DRIVER_MAGIC, tty->type = TTY_DRIVER_TYPE_SERIAL, tty->subtype = SERIAL_TYPE_NORMAL, tty->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; @@ -687,9 +685,6 @@ void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname, tty->driver_name = procname; tty->name = devname; tty->minor_start = drv->minor; - tty->num = drv->minors; - - tty->owner = THIS_MODULE; tty->init_termios = tty_std_termios; tty->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; diff --git a/drivers/misc/pti.c b/drivers/misc/pti.c index 9a35db3d27fc..383133b201a1 100644 --- a/drivers/misc/pti.c +++ b/drivers/misc/pti.c @@ -907,20 +907,17 @@ static int __init pti_init(void) /* First register module as tty device */ - pti_tty_driver = alloc_tty_driver(1); + pti_tty_driver = alloc_tty_driver(PTITTY_MINOR_NUM); if (pti_tty_driver == NULL) { pr_err("%s(%d): Memory allocation failed for ptiTTY driver\n", __func__, __LINE__); return -ENOMEM; } - pti_tty_driver->owner = THIS_MODULE; - pti_tty_driver->magic = TTY_DRIVER_MAGIC; pti_tty_driver->driver_name = DRIVERNAME; pti_tty_driver->name = TTYNAME; pti_tty_driver->major = 0; pti_tty_driver->minor_start = PTITTY_MINOR_START; - pti_tty_driver->num = PTITTY_MINOR_NUM; pti_tty_driver->type = TTY_DRIVER_TYPE_SYSTEM; pti_tty_driver->subtype = SYSTEM_TYPE_SYSCONS; pti_tty_driver->flags = TTY_DRIVER_REAL_RAW | diff --git a/drivers/mmc/card/sdio_uart.c b/drivers/mmc/card/sdio_uart.c index bd4a67cdac3f..5a2cbfac66d2 100644 --- a/drivers/mmc/card/sdio_uart.c +++ b/drivers/mmc/card/sdio_uart.c @@ -1175,7 +1175,6 @@ static int __init sdio_uart_init(void) if (!tty_drv) return -ENOMEM; - tty_drv->owner = THIS_MODULE; tty_drv->driver_name = "sdio_uart"; tty_drv->name = "ttySDIO"; tty_drv->major = 0; /* dynamically allocated */ diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index 304fe78ff60e..a73090f4c688 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -3313,7 +3313,6 @@ static int __init hso_init(void) /* fill in all needed values */ tty_drv->magic = TTY_DRIVER_MAGIC; - tty_drv->owner = THIS_MODULE; tty_drv->driver_name = driver_name; tty_drv->name = tty_filename; @@ -3322,7 +3321,6 @@ static int __init hso_init(void) tty_drv->major = tty_major; tty_drv->minor_start = 0; - tty_drv->num = HSO_SERIAL_TTY_MINORS; tty_drv->type = TTY_DRIVER_TYPE_SERIAL; tty_drv->subtype = SERIAL_TYPE_NORMAL; tty_drv->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c index 934458ad55e5..fe916bfd60f2 100644 --- a/drivers/s390/char/con3215.c +++ b/drivers/s390/char/con3215.c @@ -1137,7 +1137,6 @@ static int __init tty3215_init(void) * proc_entry, set_termios, flush_buffer, set_ldisc, write_proc */ - driver->owner = THIS_MODULE; driver->driver_name = "tty3215"; driver->name = "ttyS"; driver->major = TTY_MAJOR; diff --git a/drivers/s390/char/sclp_tty.c b/drivers/s390/char/sclp_tty.c index a879c139926a..40a9d69c898e 100644 --- a/drivers/s390/char/sclp_tty.c +++ b/drivers/s390/char/sclp_tty.c @@ -551,7 +551,6 @@ sclp_tty_init(void) return rc; } - driver->owner = THIS_MODULE; driver->driver_name = "sclp_line"; driver->name = "sclp_line"; driver->major = TTY_MAJOR; diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c index 5d706e6c946f..b635472ae660 100644 --- a/drivers/s390/char/sclp_vt220.c +++ b/drivers/s390/char/sclp_vt220.c @@ -685,7 +685,6 @@ static int __init sclp_vt220_tty_init(void) if (rc) goto out_driver; - driver->owner = THIS_MODULE; driver->driver_name = SCLP_VT220_DRIVER_NAME; driver->name = SCLP_VT220_DEVICE_NAME; driver->major = SCLP_VT220_MAJOR; diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c index 2db1482b406e..b43445a55cb6 100644 --- a/drivers/s390/char/tty3270.c +++ b/drivers/s390/char/tty3270.c @@ -1784,7 +1784,6 @@ static int __init tty3270_init(void) * Entries in tty3270_driver that are NOT initialized: * proc_entry, set_termios, flush_buffer, set_ldisc, write_proc */ - driver->owner = THIS_MODULE; driver->driver_name = "ttyTUB"; driver->name = "ttyTUB"; driver->major = IBM_TTY3270_MAJOR; diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c index b84c83456dcc..b42f00d987ae 100644 --- a/drivers/tty/amiserial.c +++ b/drivers/tty/amiserial.c @@ -1974,7 +1974,6 @@ static int __init amiga_serial_probe(struct platform_device *pdev) /* Initialize the tty_driver structure */ - serial_driver->owner = THIS_MODULE; serial_driver->driver_name = "amiserial"; serial_driver->name = "ttyS"; serial_driver->major = TTY_MAJOR; diff --git a/drivers/tty/bfin_jtag_comm.c b/drivers/tty/bfin_jtag_comm.c index 3a997760ec32..946f799861f5 100644 --- a/drivers/tty/bfin_jtag_comm.c +++ b/drivers/tty/bfin_jtag_comm.c @@ -257,7 +257,6 @@ static int __init bfin_jc_init(void) if (!bfin_jc_driver) goto err_driver; - bfin_jc_driver->owner = THIS_MODULE; bfin_jc_driver->driver_name = DRV_NAME; bfin_jc_driver->name = DEV_NAME; bfin_jc_driver->type = TTY_DRIVER_TYPE_SERIAL; diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c index 5575fee7a55e..bc7b5a5650ba 100644 --- a/drivers/tty/cyclades.c +++ b/drivers/tty/cyclades.c @@ -4090,7 +4090,6 @@ static int __init cy_init(void) /* Initialize the tty_driver structure */ - cy_serial_driver->owner = THIS_MODULE; cy_serial_driver->driver_name = "cyclades"; cy_serial_driver->name = "ttyC"; cy_serial_driver->major = CYCLADES_MAJOR; diff --git a/drivers/tty/ehv_bytechan.c b/drivers/tty/ehv_bytechan.c index 1595dba0072c..4813684cb634 100644 --- a/drivers/tty/ehv_bytechan.c +++ b/drivers/tty/ehv_bytechan.c @@ -825,7 +825,6 @@ static int __init ehv_bc_init(void) goto error; } - ehv_bc_driver->owner = THIS_MODULE; ehv_bc_driver->driver_name = "ehv-bc"; ehv_bc_driver->name = ehv_bc_console.name; ehv_bc_driver->type = TTY_DRIVER_TYPE_CONSOLE; diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c index b6b2d18fa38d..8880adf5fc6f 100644 --- a/drivers/tty/hvc/hvc_console.c +++ b/drivers/tty/hvc/hvc_console.c @@ -917,7 +917,6 @@ static int hvc_init(void) goto out; } - drv->owner = THIS_MODULE; drv->driver_name = "hvc"; drv->name = "hvc"; drv->major = HVC_MAJOR; diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c index df7e7a0a5e6c..da0aa476804d 100644 --- a/drivers/tty/hvc/hvcs.c +++ b/drivers/tty/hvc/hvcs.c @@ -1499,8 +1499,6 @@ static int __devinit hvcs_initialize(void) goto index_fail; } - hvcs_tty_driver->owner = THIS_MODULE; - hvcs_tty_driver->driver_name = hvcs_driver_name; hvcs_tty_driver->name = hvcs_device_node; diff --git a/drivers/tty/hvc/hvsi.c b/drivers/tty/hvc/hvsi.c index 1b5f28bd7930..60bc45164189 100644 --- a/drivers/tty/hvc/hvsi.c +++ b/drivers/tty/hvc/hvsi.c @@ -1088,7 +1088,6 @@ static int __init hvsi_init(void) if (!hvsi_driver) return -ENOMEM; - hvsi_driver->owner = THIS_MODULE; hvsi_driver->driver_name = "hvsi"; hvsi_driver->name = "hvsi"; hvsi_driver->major = HVSI_MAJOR; diff --git a/drivers/tty/ipwireless/tty.c b/drivers/tty/ipwireless/tty.c index ef92869502a7..6990b3b649d3 100644 --- a/drivers/tty/ipwireless/tty.c +++ b/drivers/tty/ipwireless/tty.c @@ -614,7 +614,6 @@ int ipwireless_tty_init(void) if (!ipw_tty_driver) return -ENOMEM; - ipw_tty_driver->owner = THIS_MODULE; ipw_tty_driver->driver_name = IPWIRELESS_PCCARD_NAME; ipw_tty_driver->name = "ttyIPWp"; ipw_tty_driver->major = 0; diff --git a/drivers/tty/isicom.c b/drivers/tty/isicom.c index e5c295ab5dec..b3a28b5f02ad 100644 --- a/drivers/tty/isicom.c +++ b/drivers/tty/isicom.c @@ -1678,7 +1678,6 @@ static int __init isicom_init(void) goto error; } - isicom_normal->owner = THIS_MODULE; isicom_normal->name = "ttyM"; isicom_normal->major = ISICOM_NMAJOR; isicom_normal->minor_start = 0; diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c index d15a071b1a54..4a26323a926f 100644 --- a/drivers/tty/moxa.c +++ b/drivers/tty/moxa.c @@ -1036,7 +1036,6 @@ static int __init moxa_init(void) if (!moxaDriver) return -ENOMEM; - moxaDriver->owner = THIS_MODULE; moxaDriver->name = "ttyMX"; moxaDriver->major = ttymajor; moxaDriver->minor_start = 0; diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c index 8998d527232a..260d03123524 100644 --- a/drivers/tty/mxser.c +++ b/drivers/tty/mxser.c @@ -2658,12 +2658,9 @@ static int __init mxser_module_init(void) MXSER_VERSION); /* Initialize the tty_driver structure */ - mxvar_sdriver->owner = THIS_MODULE; - mxvar_sdriver->magic = TTY_DRIVER_MAGIC; mxvar_sdriver->name = "ttyMI"; mxvar_sdriver->major = ttymajor; mxvar_sdriver->minor_start = 0; - mxvar_sdriver->num = MXSER_PORTS + 1; mxvar_sdriver->type = TTY_DRIVER_TYPE_SERIAL; mxvar_sdriver->subtype = SERIAL_TYPE_NORMAL; mxvar_sdriver->init_termios = tty_std_termios; diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index fc7bbba585ce..c43b683b6eb8 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -3120,7 +3120,6 @@ static int __init gsm_init(void) pr_err("gsm_init: tty allocation failed.\n"); return -EINVAL; } - gsm_tty_driver->owner = THIS_MODULE; gsm_tty_driver->driver_name = "gsmtty"; gsm_tty_driver->name = "gsmtty"; gsm_tty_driver->major = 0; /* Dynamic */ diff --git a/drivers/tty/nozomi.c b/drivers/tty/nozomi.c index 580da78b2d86..e7592f9037da 100644 --- a/drivers/tty/nozomi.c +++ b/drivers/tty/nozomi.c @@ -1916,7 +1916,6 @@ static __init int nozomi_init(void) if (!ntty_driver) return -ENOMEM; - ntty_driver->owner = THIS_MODULE; ntty_driver->driver_name = NOZOMI_NAME_TTY; ntty_driver->name = "noz"; ntty_driver->major = 0; diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c index d505837b3478..f96ecaec24f8 100644 --- a/drivers/tty/pty.c +++ b/drivers/tty/pty.c @@ -393,7 +393,6 @@ static void __init legacy_pty_init(void) if (!pty_slave_driver) panic("Couldn't allocate pty slave driver"); - pty_driver->owner = THIS_MODULE; pty_driver->driver_name = "pty_master"; pty_driver->name = "pty"; pty_driver->major = PTY_MASTER_MAJOR; @@ -411,7 +410,6 @@ static void __init legacy_pty_init(void) pty_driver->other = pty_slave_driver; tty_set_operations(pty_driver, &master_pty_ops_bsd); - pty_slave_driver->owner = THIS_MODULE; pty_slave_driver->driver_name = "pty_slave"; pty_slave_driver->name = "ttyp"; pty_slave_driver->major = PTY_SLAVE_MAJOR; @@ -671,7 +669,6 @@ static void __init unix98_pty_init(void) if (!pts_driver) panic("Couldn't allocate Unix98 pts driver"); - ptm_driver->owner = THIS_MODULE; ptm_driver->driver_name = "pty_master"; ptm_driver->name = "ptm"; ptm_driver->major = UNIX98_PTY_MASTER_MAJOR; @@ -690,7 +687,6 @@ static void __init unix98_pty_init(void) ptm_driver->other = pts_driver; tty_set_operations(ptm_driver, &ptm_unix98_ops); - pts_driver->owner = THIS_MODULE; pts_driver->driver_name = "pty_slave"; pts_driver->name = "pts"; pts_driver->major = UNIX98_PTY_SLAVE_MAJOR; diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c index de88aa5566e5..b088e1ea4331 100644 --- a/drivers/tty/rocket.c +++ b/drivers/tty/rocket.c @@ -2277,7 +2277,6 @@ static int __init rp_init(void) * driver with the tty layer. */ - rocket_driver->owner = THIS_MODULE; rocket_driver->flags = TTY_DRIVER_DYNAMIC_DEV; rocket_driver->name = "ttyR"; rocket_driver->driver_name = "Comtrol RocketPort"; diff --git a/drivers/tty/serial/ifx6x60.c b/drivers/tty/serial/ifx6x60.c index 7e925e20cbaa..144cd3987d4c 100644 --- a/drivers/tty/serial/ifx6x60.c +++ b/drivers/tty/serial/ifx6x60.c @@ -1375,12 +1375,9 @@ static int __init ifx_spi_init(void) return -ENOMEM; } - tty_drv->magic = TTY_DRIVER_MAGIC; - tty_drv->owner = THIS_MODULE; tty_drv->driver_name = DRVNAME; tty_drv->name = TTYNAME; tty_drv->minor_start = IFX_SPI_TTY_ID; - tty_drv->num = 1; tty_drv->type = TTY_DRIVER_TYPE_SERIAL; tty_drv->subtype = SERIAL_TYPE_NORMAL; tty_drv->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; diff --git a/drivers/tty/serial/msm_smd_tty.c b/drivers/tty/serial/msm_smd_tty.c index 4f41dcdcb771..b25e6ee71443 100644 --- a/drivers/tty/serial/msm_smd_tty.c +++ b/drivers/tty/serial/msm_smd_tty.c @@ -203,7 +203,6 @@ static int __init smd_tty_init(void) if (smd_tty_driver == 0) return -ENOMEM; - smd_tty_driver->owner = THIS_MODULE; smd_tty_driver->driver_name = "smd_tty_driver"; smd_tty_driver->name = "smd"; smd_tty_driver->major = 0; diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 13056180adf5..9c4c05b2825b 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -2230,7 +2230,6 @@ int uart_register_driver(struct uart_driver *drv) drv->tty_driver = normal; - normal->owner = drv->owner; normal->driver_name = drv->driver_name; normal->name = drv->dev_name; normal->major = drv->major; diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c index ff8017f87914..2b2988c779c7 100644 --- a/drivers/tty/synclink.c +++ b/drivers/tty/synclink.c @@ -4333,7 +4333,6 @@ static int mgsl_init_tty(void) if (!serial_driver) return -ENOMEM; - serial_driver->owner = THIS_MODULE; serial_driver->driver_name = "synclink"; serial_driver->name = "ttySL"; serial_driver->major = ttymajor; diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c index 18b48cd3b41d..a8b66be37e6e 100644 --- a/drivers/tty/synclink_gt.c +++ b/drivers/tty/synclink_gt.c @@ -3795,7 +3795,6 @@ static int __init slgt_init(void) /* Initialize the tty_driver structure */ - serial_driver->owner = THIS_MODULE; serial_driver->driver_name = tty_driver_name; serial_driver->name = tty_dev_prefix; serial_driver->major = ttymajor; diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c index a7efe538df00..ddabb61c85ba 100644 --- a/drivers/tty/synclinkmp.c +++ b/drivers/tty/synclinkmp.c @@ -3977,7 +3977,6 @@ static int __init synclinkmp_init(void) /* Initialize the tty_driver structure */ - serial_driver->owner = THIS_MODULE; serial_driver->driver_name = "synclinkmp"; serial_driver->name = "ttySLM"; serial_driver->major = ttymajor; diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index e5abceacc2d0..84c4a7d5603e 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -2994,7 +2994,7 @@ int __init vty_init(const struct file_operations *console_fops) console_driver = alloc_tty_driver(MAX_NR_CONSOLES); if (!console_driver) panic("Couldn't allocate console driver\n"); - console_driver->owner = THIS_MODULE; + console_driver->name = "tty"; console_driver->name_base = 1; console_driver->major = TTY_MAJOR; diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 11a1130319d1..6bb8472155c6 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1670,7 +1670,6 @@ static int __init acm_init(void) acm_tty_driver = alloc_tty_driver(ACM_TTY_MINORS); if (!acm_tty_driver) return -ENOMEM; - acm_tty_driver->owner = THIS_MODULE, acm_tty_driver->driver_name = "acm", acm_tty_driver->name = "ttyACM", acm_tty_driver->major = ACM_TTY_MAJOR, diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c index 6597a6813e43..490b01dd5d60 100644 --- a/drivers/usb/gadget/u_serial.c +++ b/drivers/usb/gadget/u_serial.c @@ -1087,7 +1087,6 @@ int __init gserial_setup(struct usb_gadget *g, unsigned count) if (!gs_tty_driver) return -ENOMEM; - gs_tty_driver->owner = THIS_MODULE; gs_tty_driver->driver_name = "g_serial"; gs_tty_driver->name = PREFIX; /* uses dynamically assigned dev_t values */ diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 1e30cc92719c..d4e724d9b1f4 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -1235,7 +1235,6 @@ static int __init usb_serial_init(void) goto exit_bus; } - usb_serial_tty_driver->owner = THIS_MODULE; usb_serial_tty_driver->driver_name = "usbserial"; usb_serial_tty_driver->name = "ttyUSB"; usb_serial_tty_driver->major = SERIAL_TTY_MAJOR; diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c index a2d4f5122a6a..7adb03ca51c2 100644 --- a/net/bluetooth/rfcomm/tty.c +++ b/net/bluetooth/rfcomm/tty.c @@ -1157,7 +1157,6 @@ int __init rfcomm_init_ttys(void) if (!rfcomm_tty_driver) return -ENOMEM; - rfcomm_tty_driver->owner = THIS_MODULE; rfcomm_tty_driver->driver_name = "rfcomm"; rfcomm_tty_driver->name = "rfcomm"; rfcomm_tty_driver->major = RFCOMM_TTY_MAJOR; diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c index 253695d43fd9..828f88603d6c 100644 --- a/net/irda/ircomm/ircomm_tty.c +++ b/net/irda/ircomm/ircomm_tty.c @@ -122,7 +122,6 @@ static int __init ircomm_tty_init(void) return -ENOMEM; } - driver->owner = THIS_MODULE; driver->driver_name = "ircomm"; driver->name = "ircomm"; driver->major = IRCOMM_TTY_MAJOR; -- cgit v1.2.3-59-g8ed1b From 410235fd4d20b8feaf8930a0575d23acc088aa87 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Mon, 5 Mar 2012 14:52:01 +0100 Subject: TTY: remove unneeded tty->index checks Checking if tty->index is in bounds is not needed. The tty has the index set in the initial open. This is done in get_tty_driver. And it can be only in interval <0,driver->num). So remove the tests which check exactly this interval. Some are left untouched as they check against the current backing device count. (Leaving apart that the check is racy in most of the cases.) Signed-off-by: Jiri Slaby Signed-off-by: Greg Kroah-Hartman --- arch/ia64/hp/sim/simserial.c | 9 +++------ arch/xtensa/platforms/iss/console.c | 8 ++------ drivers/char/pcmcia/synclink_cs.c | 2 +- drivers/isdn/capi/capi.c | 3 +-- drivers/isdn/gigaset/common.c | 2 -- drivers/isdn/i4l/isdn_tty.c | 7 ++----- drivers/s390/char/con3215.c | 8 ++------ drivers/tty/amiserial.c | 10 +++------- drivers/tty/cyclades.c | 6 +----- drivers/tty/hvc/hvcs.c | 24 ++++++++++-------------- drivers/tty/hvc/hvsi.c | 5 +---- drivers/tty/isicom.c | 2 -- drivers/tty/mxser.c | 2 -- drivers/tty/rocket.c | 6 +++--- drivers/tty/serial/68328serial.c | 9 ++------- drivers/tty/serial/crisv10.c | 15 +++------------ drivers/tty/synclink.c | 2 +- drivers/tty/synclink_gt.c | 2 +- drivers/tty/synclinkmp.c | 2 +- drivers/usb/gadget/u_serial.c | 3 --- net/irda/ircomm/ircomm_tty.c | 6 +----- 21 files changed, 38 insertions(+), 95 deletions(-) (limited to 'drivers/usb') diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c index f513dc02bb87..2a2fe0c56119 100644 --- a/arch/ia64/hp/sim/simserial.c +++ b/arch/ia64/hp/sim/simserial.c @@ -769,13 +769,10 @@ errout: static int rs_open(struct tty_struct *tty, struct file * filp) { struct async_struct *info; - int retval, line; + int retval; unsigned long page; - line = tty->index; - if ((line < 0) || (line >= NR_PORTS)) - return -ENODEV; - retval = get_async_struct(line, &info); + retval = get_async_struct(tty->index, &info); if (retval) return retval; tty->driver_data = info; @@ -920,7 +917,7 @@ simrs_init (void) if (!ia64_platform_is("hpsim")) return -ENODEV; - hp_simserial_driver = alloc_tty_driver(1); + hp_simserial_driver = alloc_tty_driver(NR_PORTS); if (!hp_simserial_driver) return -ENOMEM; diff --git a/arch/xtensa/platforms/iss/console.c b/arch/xtensa/platforms/iss/console.c index 247e9d40a52e..19a802a13096 100644 --- a/arch/xtensa/platforms/iss/console.c +++ b/arch/xtensa/platforms/iss/console.c @@ -68,11 +68,6 @@ static void rs_poll(unsigned long); static int rs_open(struct tty_struct *tty, struct file * filp) { - int line = tty->index; - - if ((line < 0) || (line >= SERIAL_MAX_NUM_LINES)) - return -ENODEV; - spin_lock(&timer_lock); if (tty->count == 1) { @@ -101,6 +96,7 @@ static void rs_close(struct tty_struct *tty, struct file * filp) { spin_lock(&timer_lock); if (tty->count == 1) + /* this will cause a deadlock if the timer ticks right now */ del_timer_sync(&serial_timer); spin_unlock(&timer_lock); } @@ -210,7 +206,7 @@ static const struct tty_operations serial_ops = { int __init rs_init(void) { - serial_driver = alloc_tty_driver(1); + serial_driver = alloc_tty_driver(SERIAL_MAX_NUM_LINES); printk ("%s %s\n", serial_name, serial_version); diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c index c3bcb1221e6b..f6453df4921c 100644 --- a/drivers/char/pcmcia/synclink_cs.c +++ b/drivers/char/pcmcia/synclink_cs.c @@ -2484,7 +2484,7 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp) /* verify range of specified line number */ line = tty->index; - if ((line < 0) || (line >= mgslpc_device_count)) { + if (line >= mgslpc_device_count) { printk("%s(%d):mgslpc_open with invalid line #%d.\n", __FILE__,__LINE__,line); return -ENODEV; diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c index baf08eba495c..3a7905b06e53 100644 --- a/drivers/isdn/capi/capi.c +++ b/drivers/isdn/capi/capi.c @@ -1013,8 +1013,7 @@ static const struct file_operations capi_fops = static int capinc_tty_install(struct tty_driver *driver, struct tty_struct *tty) { - int idx = tty->index; - struct capiminor *mp = capiminor_get(idx); + struct capiminor *mp = capiminor_get(tty->index); int ret = tty_standard_install(driver, tty); if (ret == 0) diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c index db621db67f61..ac0186e54bf4 100644 --- a/drivers/isdn/gigaset/common.c +++ b/drivers/isdn/gigaset/common.c @@ -1051,8 +1051,6 @@ static struct cardstate *gigaset_get_cs_by_minor(unsigned minor) struct cardstate *gigaset_get_cs_by_tty(struct tty_struct *tty) { - if (tty->index < 0 || tty->index >= tty->driver->num) - return NULL; return gigaset_get_cs_by_minor(tty->index + tty->driver->minor_start); } diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c index 2c26b64ebbea..ac4840124bc0 100644 --- a/drivers/isdn/i4l/isdn_tty.c +++ b/drivers/isdn/i4l/isdn_tty.c @@ -1590,12 +1590,9 @@ static int isdn_tty_open(struct tty_struct *tty, struct file *filp) { modem_info *info; - int retval, line; + int retval; - line = tty->index; - if (line < 0 || line >= ISDN_MAX_CHANNELS) - return -ENODEV; - info = &dev->mdm.info[line]; + info = &dev->mdm.info[tty->index]; if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_open")) return -ENODEV; if (!try_module_get(info->owner)) { diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c index fe916bfd60f2..ed23fec7abbe 100644 --- a/drivers/s390/char/con3215.c +++ b/drivers/s390/char/con3215.c @@ -926,13 +926,9 @@ console_initcall(con3215_init); static int tty3215_open(struct tty_struct *tty, struct file * filp) { struct raw3215_info *raw; - int retval, line; + int retval; - line = tty->index; - if ((line < 0) || (line >= NR_3215)) - return -ENODEV; - - raw = raw3215[line]; + raw = raw3215[tty->index]; if (raw == NULL) return -ENODEV; diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c index b42f00d987ae..753286257554 100644 --- a/drivers/tty/amiserial.c +++ b/drivers/tty/amiserial.c @@ -1768,13 +1768,9 @@ static int get_async_struct(int line, struct async_struct **ret_info) static int rs_open(struct tty_struct *tty, struct file * filp) { struct async_struct *info; - int retval, line; + int retval; - line = tty->index; - if ((line < 0) || (line >= NR_PORTS)) { - return -ENODEV; - } - retval = get_async_struct(line, &info); + retval = get_async_struct(tty->index, &info); if (retval) { return retval; } @@ -1964,7 +1960,7 @@ static int __init amiga_serial_probe(struct platform_device *pdev) struct serial_state * state; int error; - serial_driver = alloc_tty_driver(1); + serial_driver = alloc_tty_driver(NR_PORTS); if (!serial_driver) return -ENOMEM; diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c index bc7b5a5650ba..e61cabdd69df 100644 --- a/drivers/tty/cyclades.c +++ b/drivers/tty/cyclades.c @@ -1515,13 +1515,9 @@ static void cy_shutdown(struct cyclades_port *info, struct tty_struct *tty) static int cy_open(struct tty_struct *tty, struct file *filp) { struct cyclades_port *info; - unsigned int i, line; + unsigned int i, line = tty->index; int retval; - line = tty->index; - if (tty->index < 0 || NR_PORTS <= line) - return -ENODEV; - for (i = 0; i < NR_CARDS; i++) if (line < cy_card[i].first_line + cy_card[i].nports && line >= cy_card[i].first_line) diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c index da0aa476804d..d23759183b47 100644 --- a/drivers/tty/hvc/hvcs.c +++ b/drivers/tty/hvc/hvcs.c @@ -1090,27 +1090,23 @@ static int hvcs_enable_device(struct hvcs_struct *hvcsd, uint32_t unit_address, */ static struct hvcs_struct *hvcs_get_by_index(int index) { - struct hvcs_struct *hvcsd = NULL; + struct hvcs_struct *hvcsd; unsigned long flags; spin_lock(&hvcs_structs_lock); - /* We can immediately discard OOB requests */ - if (index >= 0 && index < HVCS_MAX_SERVER_ADAPTERS) { - list_for_each_entry(hvcsd, &hvcs_structs, next) { - spin_lock_irqsave(&hvcsd->lock, flags); - if (hvcsd->index == index) { - kref_get(&hvcsd->kref); - spin_unlock_irqrestore(&hvcsd->lock, flags); - spin_unlock(&hvcs_structs_lock); - return hvcsd; - } + list_for_each_entry(hvcsd, &hvcs_structs, next) { + spin_lock_irqsave(&hvcsd->lock, flags); + if (hvcsd->index == index) { + kref_get(&hvcsd->kref); spin_unlock_irqrestore(&hvcsd->lock, flags); + spin_unlock(&hvcs_structs_lock); + return hvcsd; } - hvcsd = NULL; + spin_unlock_irqrestore(&hvcsd->lock, flags); } - spin_unlock(&hvcs_structs_lock); - return hvcsd; + + return NULL; } /* diff --git a/drivers/tty/hvc/hvsi.c b/drivers/tty/hvc/hvsi.c index 60bc45164189..a7488b748647 100644 --- a/drivers/tty/hvc/hvsi.c +++ b/drivers/tty/hvc/hvsi.c @@ -737,14 +737,11 @@ static int hvsi_open(struct tty_struct *tty, struct file *filp) { struct hvsi_struct *hp; unsigned long flags; - int line = tty->index; int ret; pr_debug("%s\n", __func__); - if (line < 0 || line >= hvsi_count) - return -ENODEV; - hp = &hvsi_ports[line]; + hp = &hvsi_ports[tty->index]; tty->driver_data = hp; diff --git a/drivers/tty/isicom.c b/drivers/tty/isicom.c index b3a28b5f02ad..03c14979accf 100644 --- a/drivers/tty/isicom.c +++ b/drivers/tty/isicom.c @@ -849,8 +849,6 @@ static struct tty_port *isicom_find_port(struct tty_struct *tty) unsigned int board; int line = tty->index; - if (line < 0 || line > PORT_COUNT-1) - return NULL; board = BOARD(line); card = &isi_card[board]; diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c index 260d03123524..17ff377e4129 100644 --- a/drivers/tty/mxser.c +++ b/drivers/tty/mxser.c @@ -1010,8 +1010,6 @@ static int mxser_open(struct tty_struct *tty, struct file *filp) line = tty->index; if (line == MXSER_PORTS) return 0; - if (line < 0 || line > MXSER_PORTS) - return -ENODEV; info = &mxser_boards[line / MXSER_PORTS_PER_BOARD].ports[line % MXSER_PORTS_PER_BOARD]; if (!info->ioaddr) return -ENODEV; diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c index b088e1ea4331..777d5f9cf6cc 100644 --- a/drivers/tty/rocket.c +++ b/drivers/tty/rocket.c @@ -892,12 +892,12 @@ static int rp_open(struct tty_struct *tty, struct file *filp) { struct r_port *info; struct tty_port *port; - int line = 0, retval; + int retval; CHANNEL_t *cp; unsigned long page; - line = tty->index; - if (line < 0 || line >= MAX_RP_PORTS || ((info = rp_table[line]) == NULL)) + info = rp_table[tty->index]; + if (info == NULL) return -ENXIO; port = &info->port; diff --git a/drivers/tty/serial/68328serial.c b/drivers/tty/serial/68328serial.c index a88ef9782a4f..7398390e7e65 100644 --- a/drivers/tty/serial/68328serial.c +++ b/drivers/tty/serial/68328serial.c @@ -1190,14 +1190,9 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp, int rs_open(struct tty_struct *tty, struct file * filp) { struct m68k_serial *info; - int retval, line; - - line = tty->index; - - if (line >= NR_PORTS || line < 0) /* we have exactly one */ - return -ENODEV; + int retval; - info = &m68k_soft[line]; + info = &m68k_soft[tty->index]; if (serial_paranoia_check(info, tty->name, "rs_open")) return -ENODEV; diff --git a/drivers/tty/serial/crisv10.c b/drivers/tty/serial/crisv10.c index 1dfba7b779c8..23d791696879 100644 --- a/drivers/tty/serial/crisv10.c +++ b/drivers/tty/serial/crisv10.c @@ -4105,20 +4105,11 @@ static int rs_open(struct tty_struct *tty, struct file * filp) { struct e100_serial *info; - int retval, line; + int retval; unsigned long page; int allocated_resources = 0; - /* find which port we want to open */ - line = tty->index; - - if (line < 0 || line >= NR_PORTS) - return -ENODEV; - - /* find the corresponding e100_serial struct in the table */ - info = rs_table + line; - - /* don't allow the opening of ports that are not enabled in the HW config */ + info = rs_table + tty->index; if (!info->enabled) return -ENODEV; @@ -4131,7 +4122,7 @@ rs_open(struct tty_struct *tty, struct file * filp) tty->driver_data = info; info->port.tty = tty; - info->port.tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0; + tty->low_latency = !!(info->flags & ASYNC_LOW_LATENCY); if (!tmp_buf) { page = get_zeroed_page(GFP_KERNEL); diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c index 2b2988c779c7..8e518da85fd5 100644 --- a/drivers/tty/synclink.c +++ b/drivers/tty/synclink.c @@ -3381,7 +3381,7 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp) /* verify range of specified line number */ line = tty->index; - if ((line < 0) || (line >= mgsl_device_count)) { + if (line >= mgsl_device_count) { printk("%s(%d):mgsl_open with invalid line #%d.\n", __FILE__,__LINE__,line); return -ENODEV; diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c index a8b66be37e6e..6bee4907c6a5 100644 --- a/drivers/tty/synclink_gt.c +++ b/drivers/tty/synclink_gt.c @@ -654,7 +654,7 @@ static int open(struct tty_struct *tty, struct file *filp) unsigned long flags; line = tty->index; - if ((line < 0) || (line >= slgt_device_count)) { + if (line >= slgt_device_count) { DBGERR(("%s: open with invalid line #%d.\n", driver_name, line)); return -ENODEV; } diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c index ddabb61c85ba..4fb6c4b31b79 100644 --- a/drivers/tty/synclinkmp.c +++ b/drivers/tty/synclinkmp.c @@ -721,7 +721,7 @@ static int open(struct tty_struct *tty, struct file *filp) unsigned long flags; line = tty->index; - if ((line < 0) || (line >= synclinkmp_device_count)) { + if (line >= synclinkmp_device_count) { printk("%s(%d): open with invalid line #%d.\n", __FILE__,__LINE__,line); return -ENODEV; diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c index 490b01dd5d60..6c23938d2711 100644 --- a/drivers/usb/gadget/u_serial.c +++ b/drivers/usb/gadget/u_serial.c @@ -725,9 +725,6 @@ static int gs_open(struct tty_struct *tty, struct file *file) struct gs_port *port; int status; - if (port_num < 0 || port_num >= n_ports) - return -ENXIO; - do { mutex_lock(&ports[port_num].lock); port = ports[port_num].port; diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c index 828f88603d6c..6b9d5a0e42f9 100644 --- a/net/irda/ircomm/ircomm_tty.c +++ b/net/irda/ircomm/ircomm_tty.c @@ -365,16 +365,12 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self, static int ircomm_tty_open(struct tty_struct *tty, struct file *filp) { struct ircomm_tty_cb *self; - unsigned int line; + unsigned int line = tty->index; unsigned long flags; int ret; IRDA_DEBUG(2, "%s()\n", __func__ ); - line = tty->index; - if (line >= IRCOMM_TTY_PORTS) - return -ENODEV; - /* Check if instance already exists */ self = hashbin_lock_find(ircomm_tty, line, NULL); if (!self) { -- cgit v1.2.3-59-g8ed1b