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author | David S. Miller <davem@davemloft.net> | 2010-03-15 23:23:54 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2010-03-15 23:23:54 (GMT) |
commit | 4961e02f1999e1c3468c09b2669c94d7c3ae82a8 (patch) | |
tree | 44c15abb09d7ba5e17a9aba95ee246648b1c1a8a /drivers/usb/serial/digi_acceleport.c | |
parent | d14a0ebda7d3daede1a99c01527affb9ceaa4c22 (diff) | |
parent | a3d3203e4bb40f253b1541e310dc0f9305be7c84 (diff) | |
download | linux-fsl-qoriq-4961e02f1999e1c3468c09b2669c94d7c3ae82a8.tar.xz |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'drivers/usb/serial/digi_acceleport.c')
-rw-r--r-- | drivers/usb/serial/digi_acceleport.c | 38 |
1 files changed, 13 insertions, 25 deletions
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index 68e80be..68b0aa5 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -470,18 +470,18 @@ static int digi_read_oob_callback(struct urb *urb); static int debug; -static struct usb_device_id id_table_combined [] = { +static const struct usb_device_id id_table_combined[] = { { USB_DEVICE(DIGI_VENDOR_ID, DIGI_2_ID) }, { USB_DEVICE(DIGI_VENDOR_ID, DIGI_4_ID) }, { } /* Terminating entry */ }; -static struct usb_device_id id_table_2 [] = { +static const struct usb_device_id id_table_2[] = { { USB_DEVICE(DIGI_VENDOR_ID, DIGI_2_ID) }, { } /* Terminating entry */ }; -static struct usb_device_id id_table_4 [] = { +static const struct usb_device_id id_table_4[] = { { USB_DEVICE(DIGI_VENDOR_ID, DIGI_4_ID) }, { } /* Terminating entry */ }; @@ -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); @@ -1658,12 +1656,11 @@ static int digi_read_inb_callback(struct urb *urb) int port_status = ((unsigned char *)urb->transfer_buffer)[2]; unsigned char *data = ((unsigned char *)urb->transfer_buffer) + 3; int flag, throttled; - int i; int status = urb->status; /* 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 */ @@ -1705,17 +1702,9 @@ static int digi_read_inb_callback(struct urb *urb) /* data length is len-1 (one byte of len is port_status) */ --len; - - len = tty_buffer_request_room(tty, len); if (len > 0) { - /* Hot path */ - if (flag == TTY_NORMAL) - tty_insert_flip_string(tty, data, len); - else { - for (i = 0; i < len; i++) - tty_insert_flip_char(tty, - data[i], flag); - } + tty_insert_flip_string_fixed_flag(tty, data, len, + flag); tty_flip_buffer_push(tty); } } @@ -1776,8 +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); |