diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/usb/serial/aircable.c | 34 | ||||
-rw-r--r-- | drivers/usb/serial/cypress_m8.c | 6 | ||||
-rw-r--r-- | drivers/usb/serial/digi_acceleport.c | 19 | ||||
-rw-r--r-- | drivers/usb/serial/generic.c | 3 | ||||
-rw-r--r-- | drivers/usb/serial/ir-usb.c | 5 | ||||
-rw-r--r-- | drivers/usb/serial/keyspan.c | 57 | ||||
-rw-r--r-- | drivers/usb/serial/option.c | 4 | ||||
-rw-r--r-- | drivers/usb/serial/oti6858.c | 21 | ||||
-rw-r--r-- | drivers/usb/serial/pl2303.c | 18 | ||||
-rw-r--r-- | drivers/usb/serial/sierra.c | 8 | ||||
-rw-r--r-- | drivers/usb/serial/spcp8x5.c | 17 |
11 files changed, 66 insertions, 126 deletions
diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c index 2cbdc8f..365db10 100644 --- a/drivers/usb/serial/aircable.c +++ b/drivers/usb/serial/aircable.c @@ -468,10 +468,6 @@ static void aircable_read_bulk_callback(struct urb *urb) if (status) { dbg("%s - urb status = %d", __func__, status); - if (!port->port.count) { - dbg("%s - port is closed, exiting.", __func__); - return; - } if (status == -EPROTO) { dbg("%s - caught -EPROTO, resubmitting the urb", __func__); @@ -530,23 +526,19 @@ static void aircable_read_bulk_callback(struct urb *urb) } tty_kref_put(tty); - /* Schedule the next read _if_ we are still open */ - if (port->port.count) { - usb_fill_bulk_urb(port->read_urb, port->serial->dev, - usb_rcvbulkpipe(port->serial->dev, - port->bulk_in_endpointAddress), - port->read_urb->transfer_buffer, - port->read_urb->transfer_buffer_length, - aircable_read_bulk_callback, port); - - result = usb_submit_urb(urb, GFP_ATOMIC); - if (result) - dev_err(&urb->dev->dev, - "%s - failed resubmitting read urb, error %d\n", - __func__, result); - } - - return; + /* Schedule the next read */ + usb_fill_bulk_urb(port->read_urb, port->serial->dev, + usb_rcvbulkpipe(port->serial->dev, + port->bulk_in_endpointAddress), + port->read_urb->transfer_buffer, + port->read_urb->transfer_buffer_length, + aircable_read_bulk_callback, port); + + result = usb_submit_urb(urb, GFP_ATOMIC); + if (result && result != -EPERM) + dev_err(&urb->dev->dev, + "%s - failed resubmitting read urb, error %d\n", + __func__, result); } /* Based on ftdi_sio.c throttle */ diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index 3a5d57f..baf74b4 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -1321,9 +1321,9 @@ static void cypress_read_int_callback(struct urb *urb) continue_read: tty_kref_put(tty); - /* Continue trying to always read... unless the port has closed. */ + /* Continue trying to always read */ - if (port->port.count > 0 && priv->comm_is_ok) { + if (priv->comm_is_ok) { usb_fill_int_urb(port->interrupt_in_urb, port->serial->dev, usb_rcvintpipe(port->serial->dev, port->interrupt_in_endpointAddress), @@ -1332,7 +1332,7 @@ continue_read: cypress_read_int_callback, port, priv->read_urb_interval); result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); - if (result) { + if (result && result != -EPERM) { dev_err(&urb->dev->dev, "%s - failed resubmitting " "read urb, error %d\n", __func__, result); diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index 3817228..68b0aa5 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -1262,10 +1262,10 @@ static void digi_write_bulk_callback(struct urb *urb) return; } - /* try to send any buffered data on this port, if it is open */ + /* try to send any buffered data on this port */ spin_lock(&priv->dp_port_lock); priv->dp_write_urb_in_use = 0; - if (port->port.count && priv->dp_out_buf_len > 0) { + if (priv->dp_out_buf_len > 0) { *((unsigned char *)(port->write_urb->transfer_buffer)) = (unsigned char)DIGI_CMD_SEND_DATA; *((unsigned char *)(port->write_urb->transfer_buffer) + 1) @@ -1288,7 +1288,7 @@ static void digi_write_bulk_callback(struct urb *urb) schedule_work(&priv->dp_wakeup_work); spin_unlock(&priv->dp_port_lock); - if (ret) + if (ret && ret != -EPERM) dev_err(&port->dev, "%s: usb_submit_urb failed, ret=%d, port=%d\n", __func__, ret, priv->dp_port_num); @@ -1353,8 +1353,7 @@ static int digi_open(struct tty_struct *tty, struct usb_serial_port *port) struct digi_port *priv = usb_get_serial_port_data(port); struct ktermios not_termios; - dbg("digi_open: TOP: port=%d, open_count=%d", - priv->dp_port_num, port->port.count); + dbg("digi_open: TOP: port=%d", priv->dp_port_num); /* be sure the device is started up */ if (digi_startup_device(port->serial) != 0) @@ -1393,8 +1392,7 @@ static void digi_close(struct usb_serial_port *port) unsigned char buf[32]; struct digi_port *priv = usb_get_serial_port_data(port); - dbg("digi_close: TOP: port=%d, open_count=%d", - priv->dp_port_num, port->port.count); + dbg("digi_close: TOP: port=%d", priv->dp_port_num); mutex_lock(&port->serial->disc_mutex); /* if disconnected, just clear flags */ @@ -1629,7 +1627,7 @@ static void digi_read_bulk_callback(struct urb *urb) /* continue read */ urb->dev = port->serial->dev; ret = usb_submit_urb(urb, GFP_ATOMIC); - if (ret != 0) { + if (ret != 0 && ret != -EPERM) { dev_err(&port->dev, "%s: failed resubmitting urb, ret=%d, port=%d\n", __func__, ret, priv->dp_port_num); @@ -1662,7 +1660,7 @@ static int digi_read_inb_callback(struct urb *urb) /* do not process callbacks on closed ports */ /* but do continue the read chain */ - if (port->port.count == 0) + if (urb->status == -ENOENT) return 0; /* short/multiple packet check */ @@ -1767,8 +1765,7 @@ static int digi_read_oob_callback(struct urb *urb) tty = tty_port_tty_get(&port->port); rts = 0; - if (port->port.count) - rts = tty->termios->c_cflag & CRTSCTS; + rts = tty->termios->c_cflag & CRTSCTS; if (opcode == DIGI_CMD_READ_INPUT_SIGNALS) { spin_lock(&priv->dp_port_lock); diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index 5288203..89fac36 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -20,6 +20,7 @@ #include <linux/usb/serial.h> #include <linux/uaccess.h> #include <linux/kfifo.h> +#include <linux/serial.h> static int debug; @@ -585,7 +586,7 @@ int usb_serial_generic_resume(struct usb_serial *serial) for (i = 0; i < serial->num_ports; i++) { port = serial->port[i]; - if (!port->port.count) + if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags)) continue; if (port->read_urb) { diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c index c3e5d50..4a0f519 100644 --- a/drivers/usb/serial/ir-usb.c +++ b/drivers/usb/serial/ir-usb.c @@ -445,11 +445,6 @@ static void ir_read_bulk_callback(struct urb *urb) dbg("%s - port %d", __func__, port->number); - if (!port->port.count) { - dbg("%s - port closed.", __func__); - return; - } - switch (status) { case 0: /* Successful */ /* diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index f8c4b07..297163c 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -464,13 +464,9 @@ static void usa26_indat_callback(struct urb *urb) /* Resubmit urb so we continue receiving */ urb->dev = port->serial->dev; - if (port->port.count) { - err = usb_submit_urb(urb, GFP_ATOMIC); - if (err != 0) - dbg("%s - resubmit read urb failed. (%d)", - __func__, err); - } - return; + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err != 0) + dbg("%s - resubmit read urb failed. (%d)", __func__, err); } /* Outdat handling is common for all devices */ @@ -483,8 +479,7 @@ static void usa2x_outdat_callback(struct urb *urb) p_priv = usb_get_serial_port_data(port); dbg("%s - urb %d", __func__, urb == p_priv->out_urbs[1]); - if (port->port.count) - usb_serial_port_softint(port); + usb_serial_port_softint(port); } static void usa26_inack_callback(struct urb *urb) @@ -615,12 +610,10 @@ static void usa28_indat_callback(struct urb *urb) /* Resubmit urb so we continue receiving */ urb->dev = port->serial->dev; - if (port->port.count) { - err = usb_submit_urb(urb, GFP_ATOMIC); - if (err != 0) - dbg("%s - resubmit read urb failed. (%d)", - __func__, err); - } + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err != 0) + dbg("%s - resubmit read urb failed. (%d)", + __func__, err); p_priv->in_flip ^= 1; urb = p_priv->in_urbs[p_priv->in_flip]; @@ -856,12 +849,9 @@ static void usa49_indat_callback(struct urb *urb) /* Resubmit urb so we continue receiving */ urb->dev = port->serial->dev; - if (port->port.count) { - err = usb_submit_urb(urb, GFP_ATOMIC); - if (err != 0) - dbg("%s - resubmit read urb failed. (%d)", - __func__, err); - } + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err != 0) + dbg("%s - resubmit read urb failed. (%d)", __func__, err); } static void usa49wg_indat_callback(struct urb *urb) @@ -904,11 +894,7 @@ static void usa49wg_indat_callback(struct urb *urb) /* no error on any byte */ i++; for (x = 1; x < len ; ++x) - if (port->port.count) - tty_insert_flip_char(tty, - data[i++], 0); - else - i++; + tty_insert_flip_char(tty, data[i++], 0); } else { /* * some bytes had errors, every byte has status @@ -922,14 +908,12 @@ static void usa49wg_indat_callback(struct urb *urb) if (stat & RXERROR_PARITY) flag |= TTY_PARITY; /* XXX should handle break (0x10) */ - if (port->port.count) - tty_insert_flip_char(tty, + tty_insert_flip_char(tty, data[i+1], flag); i += 2; } } - if (port->port.count) - tty_flip_buffer_push(tty); + tty_flip_buffer_push(tty); tty_kref_put(tty); } } @@ -1013,13 +997,9 @@ static void usa90_indat_callback(struct urb *urb) /* Resubmit urb so we continue receiving */ urb->dev = port->serial->dev; - if (port->port.count) { - err = usb_submit_urb(urb, GFP_ATOMIC); - if (err != 0) - dbg("%s - resubmit read urb failed. (%d)", - __func__, err); - } - return; + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err != 0) + dbg("%s - resubmit read urb failed. (%d)", __func__, err); } @@ -2418,8 +2398,7 @@ static int keyspan_usa90_send_setup(struct usb_serial *serial, msg.portEnabled = 0; /* Sending intermediate configs */ else { - if (port->port.count) - msg.portEnabled = 1; + msg.portEnabled = 1; msg.txBreak = (p_priv->break_on); } diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 68c7457a..db0541c 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -971,9 +971,9 @@ static void option_indat_callback(struct urb *urb) tty_kref_put(tty); /* Resubmit urb so we continue receiving */ - if (port->port.count && status != -ESHUTDOWN) { + if (status != -ESHUTDOWN) { err = usb_submit_urb(urb, GFP_ATOMIC); - if (err) + if (err && err != -EPERM) printk(KERN_ERR "%s: resubmit read urb failed. " "(%d)", __func__, err); else diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c index 83973343..deeacde 100644 --- a/drivers/usb/serial/oti6858.c +++ b/drivers/usb/serial/oti6858.c @@ -585,9 +585,6 @@ static int oti6858_open(struct tty_struct *tty, struct usb_serial_port *port) usb_clear_halt(serial->dev, port->write_urb->pipe); usb_clear_halt(serial->dev, port->read_urb->pipe); - if (port->port.count != 1) - return 0; - buf = kmalloc(OTI6858_CTRL_PKT_SIZE, GFP_KERNEL); if (buf == NULL) { dev_err(&port->dev, "%s(): out of memory!\n", __func__); @@ -934,10 +931,6 @@ static void oti6858_read_bulk_callback(struct urb *urb) spin_unlock_irqrestore(&priv->lock, flags); if (status != 0) { - if (!port->port.count) { - dbg("%s(): port is closed, exiting", __func__); - return; - } /* if (status == -EPROTO) { * PL2303 mysteriously fails with -EPROTO reschedule @@ -961,14 +954,12 @@ static void oti6858_read_bulk_callback(struct urb *urb) } tty_kref_put(tty); - /* schedule the interrupt urb if we are still open */ - if (port->port.count != 0) { - port->interrupt_in_urb->dev = port->serial->dev; - result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); - if (result != 0) { - dev_err(&port->dev, "%s(): usb_submit_urb() failed," - " error %d\n", __func__, result); - } + /* schedule the interrupt urb */ + port->interrupt_in_urb->dev = port->serial->dev; + result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); + if (result != 0 && result != -EPERM) { + dev_err(&port->dev, "%s(): usb_submit_urb() failed," + " error %d\n", __func__, result); } } diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index a3e5a56..571dcf1 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -1071,10 +1071,6 @@ static void pl2303_read_bulk_callback(struct urb *urb) if (status) { dbg("%s - urb status = %d", __func__, status); - if (!port->port.count) { - dbg("%s - port is closed, exiting.", __func__); - return; - } if (status == -EPROTO) { /* PL2303 mysteriously fails with -EPROTO reschedule * the read */ @@ -1107,15 +1103,11 @@ static void pl2303_read_bulk_callback(struct urb *urb) } tty_kref_put(tty); /* Schedule the next read _if_ we are still open */ - if (port->port.count) { - urb->dev = port->serial->dev; - result = usb_submit_urb(urb, GFP_ATOMIC); - if (result) - dev_err(&urb->dev->dev, "%s - failed resubmitting" - " read urb, error %d\n", __func__, result); - } - - return; + urb->dev = port->serial->dev; + result = usb_submit_urb(urb, GFP_ATOMIC); + if (result && result != -EPERM) + dev_err(&urb->dev->dev, "%s - failed resubmitting" + " read urb, error %d\n", __func__, result); } static void pl2303_write_bulk_callback(struct urb *urb) diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index c012e51..34e6f89 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -610,10 +610,10 @@ static void sierra_indat_callback(struct urb *urb) } /* Resubmit urb so we continue receiving */ - if (port->port.count && status != -ESHUTDOWN && status != -EPERM) { + if (status != -ESHUTDOWN && status != -EPERM) { usb_mark_last_busy(port->serial->dev); err = usb_submit_urb(urb, GFP_ATOMIC); - if (err) + if (err && err != -EPERM) dev_err(&port->dev, "resubmit read urb failed." "(%d)\n", err); } @@ -672,11 +672,11 @@ static void sierra_instat_callback(struct urb *urb) dev_dbg(&port->dev, "%s: error %d\n", __func__, status); /* Resubmit urb so we continue receiving IRQ data */ - if (port->port.count && status != -ESHUTDOWN && status != -ENOENT) { + if (status != -ESHUTDOWN && status != -ENOENT) { usb_mark_last_busy(serial->dev); urb->dev = serial->dev; err = usb_submit_urb(urb, GFP_ATOMIC); - if (err) + if (err && err != -EPERM) dev_err(&port->dev, "%s: resubmit intr urb " "failed. (%d)\n", __func__, err); } diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c index cf508e2..5d39191 100644 --- a/drivers/usb/serial/spcp8x5.c +++ b/drivers/usb/serial/spcp8x5.c @@ -686,8 +686,6 @@ static void spcp8x5_read_bulk_callback(struct urb *urb) /* check the urb status */ if (result) { - if (!port->port.count) - return; if (result == -EPROTO) { /* spcp8x5 mysteriously fails with -EPROTO */ /* reschedule the read */ @@ -734,16 +732,11 @@ static void spcp8x5_read_bulk_callback(struct urb *urb) } tty_kref_put(tty); - /* Schedule the next read _if_ we are still open */ - if (port->port.count) { - urb->dev = port->serial->dev; - result = usb_submit_urb(urb , GFP_ATOMIC); - if (result) - dev_dbg(&port->dev, "failed submitting read urb %d\n", - result); - } - - return; + /* Schedule the next read */ + urb->dev = port->serial->dev; + result = usb_submit_urb(urb , GFP_ATOMIC); + if (result) + dev_dbg(&port->dev, "failed submitting read urb %d\n", result); } /* get data from ring buffer and then write to usb bus */ |