diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-01 12:01:10 -0700 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-01 12:01:10 -0700 |
commit | ef99f3aee9641d10a7c80d4803d2f0f004c797ca (patch) | |
tree | 83f14ccef66db48fc4178bd8b973462006de86b8 /drivers/usb/serial | |
parent | cb06ff102e2d79a82cf780aa5e6947b2e0529ac0 (diff) | |
parent | 07961ac7c0ee8b546658717034fe692fd12eefa9 (diff) |
Merge 3.9-rc5 into tty-next
We need the fixes here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/serial')
-rw-r--r-- | drivers/usb/serial/ark3116.c | 10 | ||||
-rw-r--r-- | drivers/usb/serial/ch341.c | 11 | ||||
-rw-r--r-- | drivers/usb/serial/cypress_m8.c | 14 | ||||
-rw-r--r-- | drivers/usb/serial/f81232.c | 9 | ||||
-rw-r--r-- | drivers/usb/serial/ftdi_sio.c | 20 | ||||
-rw-r--r-- | drivers/usb/serial/ftdi_sio_ids.h | 7 | ||||
-rw-r--r-- | drivers/usb/serial/garmin_gps.c | 7 | ||||
-rw-r--r-- | drivers/usb/serial/io_edgeport.c | 12 | ||||
-rw-r--r-- | drivers/usb/serial/io_ti.c | 13 | ||||
-rw-r--r-- | drivers/usb/serial/mct_u232.c | 13 | ||||
-rw-r--r-- | drivers/usb/serial/mos7840.c | 16 | ||||
-rw-r--r-- | drivers/usb/serial/oti6858.c | 10 | ||||
-rw-r--r-- | drivers/usb/serial/pl2303.c | 11 | ||||
-rw-r--r-- | drivers/usb/serial/quatech2.c | 12 | ||||
-rw-r--r-- | drivers/usb/serial/spcp8x5.c | 9 | ||||
-rw-r--r-- | drivers/usb/serial/ssu100.c | 12 | ||||
-rw-r--r-- | drivers/usb/serial/ti_usb_3410_5052.c | 10 | ||||
-rw-r--r-- | drivers/usb/serial/usb-serial.c | 4 |
18 files changed, 113 insertions, 87 deletions
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c index cbd904b8fba5..4775f8209e55 100644 --- a/drivers/usb/serial/ark3116.c +++ b/drivers/usb/serial/ark3116.c @@ -62,7 +62,6 @@ static int is_irda(struct usb_serial *serial) } struct ark3116_private { - wait_queue_head_t delta_msr_wait; struct async_icount icount; int irda; /* 1 for irda device */ @@ -146,7 +145,6 @@ static int ark3116_port_probe(struct usb_serial_port *port) if (!priv) return -ENOMEM; - init_waitqueue_head(&priv->delta_msr_wait); mutex_init(&priv->hw_lock); spin_lock_init(&priv->status_lock); @@ -456,10 +454,14 @@ static int ark3116_ioctl(struct tty_struct *tty, case TIOCMIWAIT: for (;;) { struct async_icount prev = priv->icount; - interruptible_sleep_on(&priv->delta_msr_wait); + interruptible_sleep_on(&port->delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; + + if (port->serial->disconnected) + return -EIO; + if ((prev.rng == priv->icount.rng) && (prev.dsr == priv->icount.dsr) && (prev.dcd == priv->icount.dcd) && @@ -580,7 +582,7 @@ static void ark3116_update_msr(struct usb_serial_port *port, __u8 msr) priv->icount.dcd++; if (msr & UART_MSR_TERI) priv->icount.rng++; - wake_up_interruptible(&priv->delta_msr_wait); + wake_up_interruptible(&port->delta_msr_wait); } } diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index d255f66e708e..07d4650a32ab 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -80,7 +80,6 @@ MODULE_DEVICE_TABLE(usb, id_table); struct ch341_private { spinlock_t lock; /* access lock */ - wait_queue_head_t delta_msr_wait; /* wait queue for modem status */ unsigned baud_rate; /* set baud rate */ u8 line_control; /* set line control value RTS/DTR */ u8 line_status; /* active status of modem control inputs */ @@ -252,7 +251,6 @@ static int ch341_port_probe(struct usb_serial_port *port) return -ENOMEM; spin_lock_init(&priv->lock); - init_waitqueue_head(&priv->delta_msr_wait); priv->baud_rate = DEFAULT_BAUD_RATE; priv->line_control = CH341_BIT_RTS | CH341_BIT_DTR; @@ -298,7 +296,7 @@ static void ch341_dtr_rts(struct usb_serial_port *port, int on) priv->line_control &= ~(CH341_BIT_RTS | CH341_BIT_DTR); spin_unlock_irqrestore(&priv->lock, flags); ch341_set_handshake(port->serial->dev, priv->line_control); - wake_up_interruptible(&priv->delta_msr_wait); + wake_up_interruptible(&port->delta_msr_wait); } static void ch341_close(struct usb_serial_port *port) @@ -491,7 +489,7 @@ static void ch341_read_int_callback(struct urb *urb) tty_kref_put(tty); } - wake_up_interruptible(&priv->delta_msr_wait); + wake_up_interruptible(&port->delta_msr_wait); } exit: @@ -517,11 +515,14 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) spin_unlock_irqrestore(&priv->lock, flags); while (!multi_change) { - interruptible_sleep_on(&priv->delta_msr_wait); + interruptible_sleep_on(&port->delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; + if (port->serial->disconnected) + return -EIO; + spin_lock_irqsave(&priv->lock, flags); status = priv->line_status; multi_change = priv->multi_status_change; diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index 8efa19d0e9fb..ba7352e4187e 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -111,7 +111,6 @@ struct cypress_private { int baud_rate; /* stores current baud rate in integer form */ int isthrottled; /* if throttled, discard reads */ - wait_queue_head_t delta_msr_wait; /* used for TIOCMIWAIT */ char prev_status, diff_status; /* used for TIOCMIWAIT */ /* we pass a pointer to this as the argument sent to cypress_set_termios old_termios */ @@ -449,7 +448,6 @@ static int cypress_generic_port_probe(struct usb_serial_port *port) kfree(priv); return -ENOMEM; } - init_waitqueue_head(&priv->delta_msr_wait); usb_reset_configuration(serial->dev); @@ -868,12 +866,16 @@ static int cypress_ioctl(struct tty_struct *tty, switch (cmd) { /* This code comes from drivers/char/serial.c and ftdi_sio.c */ case TIOCMIWAIT: - while (priv != NULL) { - interruptible_sleep_on(&priv->delta_msr_wait); + for (;;) { + interruptible_sleep_on(&port->delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; - else { + + if (port->serial->disconnected) + return -EIO; + + { char diff = priv->diff_status; if (diff == 0) return -EIO; /* no change => error */ @@ -1187,7 +1189,7 @@ static void cypress_read_int_callback(struct urb *urb) if (priv->current_status != priv->prev_status) { priv->diff_status |= priv->current_status ^ priv->prev_status; - wake_up_interruptible(&priv->delta_msr_wait); + wake_up_interruptible(&port->delta_msr_wait); priv->prev_status = priv->current_status; } spin_unlock_irqrestore(&priv->lock, flags); diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c index b1b2dc64b50b..a172ad5c5ce8 100644 --- a/drivers/usb/serial/f81232.c +++ b/drivers/usb/serial/f81232.c @@ -47,7 +47,6 @@ MODULE_DEVICE_TABLE(usb, id_table); struct f81232_private { spinlock_t lock; - wait_queue_head_t delta_msr_wait; u8 line_control; u8 line_status; }; @@ -111,7 +110,7 @@ static void f81232_process_read_urb(struct urb *urb) line_status = priv->line_status; priv->line_status &= ~UART_STATE_TRANSIENT_MASK; spin_unlock_irqrestore(&priv->lock, flags); - wake_up_interruptible(&priv->delta_msr_wait); + wake_up_interruptible(&port->delta_msr_wait); if (!urb->actual_length) return; @@ -256,11 +255,14 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) spin_unlock_irqrestore(&priv->lock, flags); while (1) { - interruptible_sleep_on(&priv->delta_msr_wait); + interruptible_sleep_on(&port->delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; + if (port->serial->disconnected) + return -EIO; + spin_lock_irqsave(&priv->lock, flags); status = priv->line_status; spin_unlock_irqrestore(&priv->lock, flags); @@ -322,7 +324,6 @@ static int f81232_port_probe(struct usb_serial_port *port) return -ENOMEM; spin_lock_init(&priv->lock); - init_waitqueue_head(&priv->delta_msr_wait); usb_set_serial_port_data(port, priv); diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index edd162df49ca..9886180e45f1 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -69,9 +69,7 @@ struct ftdi_private { int flags; /* some ASYNC_xxxx flags are supported */ unsigned long last_dtr_rts; /* saved modem control outputs */ struct async_icount icount; - wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ char prev_status; /* Used for TIOCMIWAIT */ - bool dev_gone; /* Used to abort TIOCMIWAIT */ char transmit_empty; /* If transmitter is empty or not */ __u16 interface; /* FT2232C, FT2232H or FT4232H port interface (0 for FT232/245) */ @@ -642,6 +640,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) }, { USB_DEVICE(ACTON_VID, ACTON_SPECTRAPRO_PID) }, { USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) }, + { USB_DEVICE(MITSUBISHI_VID, MITSUBISHI_FXUSB_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) }, @@ -1691,10 +1690,8 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port) kref_init(&priv->kref); mutex_init(&priv->cfg_lock); - init_waitqueue_head(&priv->delta_msr_wait); priv->flags = ASYNC_LOW_LATENCY; - priv->dev_gone = false; if (quirk && quirk->port_probe) quirk->port_probe(priv); @@ -1840,8 +1837,7 @@ static int ftdi_sio_port_remove(struct usb_serial_port *port) { struct ftdi_private *priv = usb_get_serial_port_data(port); - priv->dev_gone = true; - wake_up_interruptible_all(&priv->delta_msr_wait); + wake_up_interruptible(&port->delta_msr_wait); remove_sysfs_attrs(port); @@ -1989,7 +1985,7 @@ static int ftdi_process_packet(struct usb_serial_port *port, if (diff_status & FTDI_RS0_RLSD) priv->icount.dcd++; - wake_up_interruptible_all(&priv->delta_msr_wait); + wake_up_interruptible(&port->delta_msr_wait); priv->prev_status = status; } @@ -2440,11 +2436,15 @@ static int ftdi_ioctl(struct tty_struct *tty, */ case TIOCMIWAIT: cprev = priv->icount; - while (!priv->dev_gone) { - interruptible_sleep_on(&priv->delta_msr_wait); + for (;;) { + interruptible_sleep_on(&port->delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; + + if (port->serial->disconnected) + return -EIO; + cnow = priv->icount; if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || @@ -2454,8 +2454,6 @@ static int ftdi_ioctl(struct tty_struct *tty, } cprev = cnow; } - return -EIO; - break; case TIOCSERGETLSR: return get_lsr_info(port, (struct serial_struct __user *)arg); break; diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index 9d359e189a64..e79861eeed4c 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -584,6 +584,13 @@ #define CONTEC_COM1USBH_PID 0x8311 /* COM-1(USB)H */ /* + * Mitsubishi Electric Corp. (http://www.meau.com) + * Submitted by Konstantin Holoborodko + */ +#define MITSUBISHI_VID 0x06D3 +#define MITSUBISHI_FXUSB_PID 0x0284 /* USB/RS422 converters: FX-USB-AW/-BD */ + +/* * Definitions for B&B Electronics products. */ #define BANDB_VID 0x0856 /* B&B Electronics Vendor ID */ diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c index 1a07b12ef341..81caf5623ee2 100644 --- a/drivers/usb/serial/garmin_gps.c +++ b/drivers/usb/serial/garmin_gps.c @@ -956,10 +956,7 @@ static void garmin_close(struct usb_serial_port *port) if (!serial) return; - mutex_lock(&port->serial->disc_mutex); - - if (!port->serial->disconnected) - garmin_clear(garmin_data_p); + garmin_clear(garmin_data_p); /* shutdown our urbs */ usb_kill_urb(port->read_urb); @@ -968,8 +965,6 @@ static void garmin_close(struct usb_serial_port *port) /* keep reset state so we know that we must start a new session */ if (garmin_data_p->state != STATE_RESET) garmin_data_p->state = STATE_DISCONNECTED; - - mutex_unlock(&port->serial->disc_mutex); } diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index 44e5208f7c61..cf0b0a2f7b56 100644 --- a/drivers/usb/serial/io_edgeport.c +++ b/drivers/usb/serial/io_edgeport.c @@ -110,7 +110,6 @@ struct edgeport_port { wait_queue_head_t wait_chase; /* for handling sleeping while waiting for chase to finish */ wait_queue_head_t wait_open; /* for handling sleeping while waiting for open to finish */ wait_queue_head_t wait_command; /* for handling sleeping while waiting for command to finish */ - wait_queue_head_t delta_msr_wait; /* for handling sleeping while waiting for msr change to happen */ struct async_icount icount; struct usb_serial_port *port; /* loop back to the owner of this object */ @@ -866,7 +865,6 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port) /* initialize our wait queues */ init_waitqueue_head(&edge_port->wait_open); init_waitqueue_head(&edge_port->wait_chase); - init_waitqueue_head(&edge_port->delta_msr_wait); init_waitqueue_head(&edge_port->wait_command); /* initialize our icount structure */ @@ -1651,13 +1649,17 @@ static int edge_ioctl(struct tty_struct *tty, dev_dbg(&port->dev, "%s (%d) TIOCMIWAIT\n", __func__, port->number); cprev = edge_port->icount; while (1) { - prepare_to_wait(&edge_port->delta_msr_wait, + prepare_to_wait(&port->delta_msr_wait, &wait, TASK_INTERRUPTIBLE); schedule(); - finish_wait(&edge_port->delta_msr_wait, &wait); + finish_wait(&port->delta_msr_wait, &wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; + + if (port->serial->disconnected) + return -EIO; + cnow = edge_port->icount; if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) @@ -2033,7 +2035,7 @@ static void handle_new_msr(struct edgeport_port *edge_port, __u8 newMsr) icount->dcd++; if (newMsr & EDGEPORT_MSR_DELTA_RI) icount->rng++; - wake_up_interruptible(&edge_port->delta_msr_wait); + wake_up_interruptible(&edge_port->port->delta_msr_wait); } /* Save the new modem status */ diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index c23776679f70..7777172206de 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -87,9 +87,6 @@ struct edgeport_port { int close_pending; int lsr_event; struct async_icount icount; - wait_queue_head_t delta_msr_wait; /* for handling sleeping while - waiting for msr change to - happen */ struct edgeport_serial *edge_serial; struct usb_serial_port *port; __u8 bUartMode; /* Port type, 0: RS232, etc. */ @@ -1459,7 +1456,7 @@ static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr) icount->dcd++; if (msr & EDGEPORT_MSR_DELTA_RI) icount->rng++; - wake_up_interruptible(&edge_port->delta_msr_wait); + wake_up_interruptible(&edge_port->port->delta_msr_wait); } /* Save the new modem status */ @@ -1754,7 +1751,6 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port) dev = port->serial->dev; memset(&(edge_port->icount), 0x00, sizeof(edge_port->icount)); - init_waitqueue_head(&edge_port->delta_msr_wait); /* turn off loopback */ status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0); @@ -2434,10 +2430,14 @@ static int edge_ioctl(struct tty_struct *tty, dev_dbg(&port->dev, "%s - TIOCMIWAIT\n", __func__); cprev = edge_port->icount; while (1) { - interruptible_sleep_on(&edge_port->delta_msr_wait); + interruptible_sleep_on(&port->delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; + + if (port->serial->disconnected) + return -EIO; + cnow = edge_port->icount; if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) @@ -2649,6 +2649,7 @@ static struct usb_serial_driver edgeport_2port_device = { .set_termios = edge_set_termios, .tiocmget = edge_tiocmget, .tiocmset = edge_tiocmset, + .get_icount = edge_get_icount, .write = edge_write, .write_room = edge_write_room, .chars_in_buffer = edge_chars_in_buffer, diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c index a64d420f687b..06d5a60be2c4 100644 --- a/drivers/usb/serial/mct_u232.c +++ b/drivers/usb/serial/mct_u232.c @@ -114,8 +114,6 @@ struct mct_u232_private { unsigned char last_msr; /* Modem Status Register */ unsigned int rx_flags; /* Throttling flags */ struct async_icount icount; - wait_queue_head_t msr_wait; /* for handling sleeping while waiting - for msr change to happen */ }; #define THROTTLED 0x01 @@ -409,7 +407,6 @@ static int mct_u232_port_probe(struct usb_serial_port *port) return -ENOMEM; spin_lock_init(&priv->lock); - init_waitqueue_head(&priv->msr_wait); usb_set_serial_port_data(port, priv); @@ -601,7 +598,7 @@ static void mct_u232_read_int_callback(struct urb *urb) tty_kref_put(tty); } #endif - wake_up_interruptible(&priv->msr_wait); + wake_up_interruptible(&port->delta_msr_wait); spin_unlock_irqrestore(&priv->lock, flags); exit: retval = usb_submit_urb(urb, GFP_ATOMIC); @@ -810,13 +807,17 @@ static int mct_u232_ioctl(struct tty_struct *tty, cprev = mct_u232_port->icount; spin_unlock_irqrestore(&mct_u232_port->lock, flags); for ( ; ; ) { - prepare_to_wait(&mct_u232_port->msr_wait, + prepare_to_wait(&port->delta_msr_wait, &wait, TASK_INTERRUPTIBLE); schedule(); - finish_wait(&mct_u232_port->msr_wait, &wait); + finish_wait(&port->delta_msr_wait, &wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; + + if (port->serial->disconnected) + return -EIO; + spin_lock_irqsave(&mct_u232_port->lock, flags); cnow = mct_u232_port->icount; spin_unlock_irqrestore(&mct_u232_port->lock, flags); diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 08284d28e84b..2be376a2e0e3 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -219,7 +219,6 @@ struct moschip_port { char open; char open_ports; wait_queue_head_t wait_chase; /* for handling sleeping while waiting for chase to finish */ - wait_queue_head_t delta_msr_wait; /* for handling sleeping while waiting for msr change to happen */ int delta_msr_cond; struct async_icount icount; struct usb_serial_port *port; /* loop back to the owner of this object */ @@ -423,6 +422,9 @@ static void mos7840_handle_new_msr(struct moschip_port *port, __u8 new_msr) icount->rng++; smp_wmb(); } + + mos7840_port->delta_msr_cond = 1; + wake_up_interruptible(&port->port->delta_msr_wait); } } @@ -1124,7 +1126,6 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port) /* initialize our wait queues */ init_waitqueue_head(&mos7840_port->wait_chase); - init_waitqueue_head(&mos7840_port->delta_msr_wait); /* initialize our icount structure */ memset(&(mos7840_port->icount), 0x00, sizeof(mos7840_port->icount)); @@ -2014,8 +2015,6 @@ static void mos7840_change_port_settings(struct tty_struct *tty, mos7840_port->read_urb_busy = false; } } - wake_up(&mos7840_port->delta_msr_wait); - mos7840_port->delta_msr_cond = 1; dev_dbg(&port->dev, "%s - mos7840_port->shadowLCR is End %x\n", __func__, mos7840_port->shadowLCR); } @@ -2216,13 +2215,18 @@ static int mos7840_ioctl(struct tty_struct *tty, while (1) { /* interruptible_sleep_on(&mos7840_port->delta_msr_wait); */ mos7840_port->delta_msr_cond = 0; - wait_event_interruptible(mos7840_port->delta_msr_wait, - (mos7840_port-> + wait_event_interruptible(port->delta_msr_wait, + (port->serial->disconnected || + mos7840_port-> delta_msr_cond == 1)); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; + + if (port->serial->disconnected) + return -EIO; + cnow = mos7840_port->icount; smp_rmb(); if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c index a958fd41b5b3..87c71ccfee87 100644 --- a/drivers/usb/serial/oti6858.c +++ b/drivers/usb/serial/oti6858.c @@ -188,7 +188,6 @@ struct oti6858_private { u8 setup_done; struct delayed_work delayed_setup_work; - wait_queue_head_t intr_wait; struct usb_serial_port *port; /* USB port with which associated */ }; @@ -339,7 +338,6 @@ static int oti6858_port_probe(struct usb_serial_port *port) return -ENOMEM; spin_lock_init(&priv->lock); - init_waitqueue_head(&priv->intr_wait); priv->port = port; INIT_DELAYED_WORK(&priv->delayed_setup_work, setup_line); INIT_DELAYED_WORK(&priv->delayed_write_work, send_data); @@ -664,11 +662,15 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) spin_unlock_irqrestore(&priv->lock, flags); while (1) { - wait_event_interruptible(priv->intr_wait, + wait_event_interruptible(port->delta_msr_wait, + port->serial->disconnected || priv->status.pin_state != prev); if (signal_pending(current)) return -ERESTARTSYS; + if (port->serial->disconnected) + return -EIO; + spin_lock_irqsave(&priv->lock, flags); status = priv->status.pin_state & PIN_MASK; spin_unlock_irqrestore(&priv->lock, flags); @@ -763,7 +765,7 @@ static void oti6858_read_int_callback(struct urb *urb) if (!priv->transient) { if (xs->pin_state != priv->status.pin_state) - wake_up_interruptible(&priv->intr_wait); + wake_up_interruptible(&port->delta_msr_wait); memcpy(&priv->status, xs, OTI6858_CTRL_PKT_SIZE); } diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 54adc9125e5c..3b10018d89a3 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -139,7 +139,6 @@ struct pl2303_serial_private { struct pl2303_private { spinlock_t lock; - wait_queue_head_t delta_msr_wait; u8 line_control; u8 line_status; }; @@ -233,7 +232,6 @@ static int pl2303_port_probe(struct usb_serial_port *port) return -ENOMEM; spin_lock_init(&priv->lock); - init_waitqueue_head(&priv->delta_msr_wait); usb_set_serial_port_data(port, priv); @@ -607,11 +605,14 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) spin_unlock_irqrestore(&priv->lock, flags); while (1) { - interruptible_sleep_on(&priv->delta_msr_wait); + interruptible_sleep_on(&port->delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; + if (port->serial->disconnected) + return -EIO; + spin_lock_irqsave(&priv->lock, flags); status = priv->line_status; spin_unlock_irqrestore(&priv->lock, flags); @@ -719,7 +720,7 @@ static void pl2303_update_line_status(struct usb_serial_port *port, spin_unlock_irqrestore(&priv->lock, flags); if (priv->line_status & UART_BREAK_ERROR) usb_serial_handle_break(port); - wake_up_interruptible(&priv->delta_msr_wait); + wake_up_interruptible(&port->delta_msr_wait); tty = tty_port_tty_get(&port->port); if (!tty) @@ -783,7 +784,7 @@ static void pl2303_process_read_urb(struct urb *urb) line_status = priv->line_status; priv->line_status &= ~UART_STATE_TRANSIENT_MASK; spin_unlock_irqrestore(&priv->lock, flags); - wake_up_interruptible(&priv->delta_msr_wait); + wake_up_interruptible(&port->delta_msr_wait); if (!urb->actual_length) return; diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c index d8531047b41a..ef3a7d5eaab4 100644 --- a/drivers/usb/serial/quatech2.c +++ b/drivers/usb/serial/quatech2.c @@ -127,7 +127,6 @@ struct qt2_port_private { u8 shadowLSR; u8 shadowMSR; - wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ struct async_icount icount; struct usb_serial_port *port; @@ -502,8 +501,9 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) spin_unlock_irqrestore(&priv->lock, flags); while (1) { - wait_event_interruptible(priv->delta_msr_wait, - ((priv->icount.rng != prev.rng) || + wait_event_interruptible(port->delta_msr_wait, + (port->serial->disconnected || + (priv->icount.rng != prev.rng) || (priv->icount.dsr != prev.dsr) || (priv->icount.dcd != prev.dcd) || (priv->icount.cts != prev.cts))); @@ -511,6 +511,9 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) if (signal_pending(current)) return -ERESTARTSYS; + if (port->serial->disconnected) + return -EIO; + spin_lock_irqsave(&priv->lock, flags); cur = priv->icount; spin_unlock_irqrestore(&priv->lock, flags); @@ -820,7 +823,6 @@ static int qt2_port_probe(struct usb_serial_port *port) spin_lock_init(&port_priv->lock); spin_lock_init(&port_priv->urb_lock); - init_waitqueue_head(&port_priv->delta_msr_wait); port_priv->port = port; port_priv->write_urb = usb_alloc_urb(0, GFP_KERNEL); @@ -957,7 +959,7 @@ static void qt2_update_msr(struct usb_serial_port *port, unsigned char *ch) if (newMSR & UART_MSR_TERI) port_priv->icount.rng++; - wake_up_interruptible(&port_priv->delta_msr_wait); + wake_up_interruptible(&port->delta_msr_wait); } } diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c index 91ff8e3bddbd..549ef68ff5fa 100644 --- a/drivers/usb/serial/spcp8x5.c +++ b/drivers/usb/serial/spcp8x5.c @@ -149,7 +149,6 @@ enum spcp8x5_type { struct spcp8x5_private { spinlock_t lock; enum spcp8x5_type type; - wait_queue_head_t delta_msr_wait; u8 line_control; u8 line_status; }; @@ -179,7 +178,6 @@ static int spcp8x5_port_probe(struct usb_serial_port *port) return -ENOMEM; spin_lock_init(&priv->lock); - init_waitqueue_head(&priv->delta_msr_wait); priv->type = type; usb_set_serial_port_data(port , priv); @@ -475,7 +473,7 @@ static void spcp8x5_process_read_urb(struct urb *urb) priv->line_status &= ~UART_STATE_TRANSIENT_MASK; spin_unlock_irqrestore(&priv->lock, flags); /* wake up the wait for termios */ - wake_up_interruptible(&priv->delta_msr_wait); + wake_up_interruptible(&port->delta_msr_wait); if (!urb->actual_length) return; @@ -526,12 +524,15 @@ static int spcp8x5_wait_modem_info(struct usb_serial_port *port, while (1) { /* wake up in bulk read */ - interruptible_sleep_on(&priv->delta_msr_wait); + interruptible_sleep_on(&port->delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; + if (port->serial->disconnected) + return -EIO; + spin_lock_irqsave(&priv->lock, flags); status = priv->line_status; spin_unlock_irqrestore(&priv->lock, flags); diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c index b57cf841c5b6..4b2a19757b4d 100644 --- a/drivers/usb/serial/ssu100.c +++ b/drivers/usb/serial/ssu100.c @@ -61,7 +61,6 @@ struct ssu100_port_private { spinlock_t status_lock; u8 shadowLSR; u8 shadowMSR; - wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ struct async_icount icount; }; @@ -355,8 +354,9 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) spin_unlock_irqrestore(&priv->status_lock, flags); while (1) { - wait_event_interruptible(priv->delta_msr_wait, - ((priv->icount.rng != prev.rng) || + wait_event_interruptible(port->delta_msr_wait, + (port->serial->disconnected || + (priv->icount.rng != prev.rng) || (priv->icount.dsr != prev.dsr) || (priv->icount.dcd != prev.dcd) || (priv->icount.cts != prev.cts))); @@ -364,6 +364,9 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) if (signal_pending(current)) return -ERESTARTSYS; + if (port->serial->disconnected) + return -EIO; + spin_lock_irqsave(&priv->status_lock, flags); cur = priv->icount; spin_unlock_irqrestore(&priv->status_lock, flags); @@ -445,7 +448,6 @@ static int ssu100_port_probe(struct usb_serial_port *port) return -ENOMEM; spin_lock_init(&priv->status_lock); - init_waitqueue_head(&priv->delta_msr_wait); usb_set_serial_port_data(port, priv); @@ -537,7 +539,7 @@ static void ssu100_update_msr(struct usb_serial_port *port, u8 msr) priv->icount.dcd++; if (msr & UART_MSR_TERI) priv->icount.rng++; - wake_up_interruptible(&priv->delta_msr_wait); + wake_up_interruptible(&port->delta_msr_wait); } } diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 437f2d579cde..19a71a9eecf0 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -74,7 +74,6 @@ struct ti_port { int tp_flags; int tp_closing_wait;/* in .01 secs */ struct async_icount tp_icount; - wait_queue_head_t tp_msr_wait; /* wait for msr change */ wait_queue_head_t tp_write_wait; struct ti_device *tp_tdev; struct usb_serial_port *tp_port; @@ -432,7 +431,6 @@ static int ti_port_probe(struct usb_serial_port *port) else tport->tp_uart_base_addr = TI_UART2_BASE_ADDR; tport->tp_closing_wait = closing_wait; - init_waitqueue_head(&tport->tp_msr_wait); init_waitqueue_head(&tport->tp_write_wait); if (kfifo_alloc(&tport->write_fifo, TI_WRITE_BUF_SIZE, GFP_KERNEL)) { kfree(tport); @@ -784,9 +782,13 @@ static int ti_ioctl(struct tty_struct *tty, dev_dbg(&port->dev, "%s - TIOCMIWAIT\n", __func__); cprev = tport->tp_icount; while (1) { - interruptible_sleep_on(&tport->tp_msr_wait); + interruptible_sleep_on(&port->delta_msr_wait); if (signal_pending(current)) return -ERESTARTSYS; + + if (port->serial->disconnected) + return -EIO; + cnow = tport->tp_icount; if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) @@ -1389,7 +1391,7 @@ static void ti_handle_new_msr(struct ti_port *tport, __u8 msr) icount->dcd++; if (msr & TI_MSR_DELTA_RI) icount->rng++; - wake_up_interruptible(&tport->tp_msr_wait); + wake_up_interruptible(&tport->tp_port->delta_msr_wait); spin_unlock_irqrestore(&tport->tp_lock, flags); } |