diff options
Diffstat (limited to 'drivers/usb/serial/visor.c')
| -rw-r--r-- | drivers/usb/serial/visor.c | 40 |
1 files changed, 23 insertions, 17 deletions
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c index ad1f9232292..094942707c7 100644 --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -368,7 +368,7 @@ static int visor_write(struct tty_struct *tty, struct usb_serial_port *port, spin_lock_irqsave(&priv->lock, flags); if (priv->outstanding_urbs > URB_UPPER_LIMIT) { spin_unlock_irqrestore(&priv->lock, flags); - dbg("%s - write limit hit\n", __func__); + dbg("%s - write limit hit", __func__); return 0; } priv->outstanding_urbs++; @@ -446,7 +446,7 @@ static int visor_write_room(struct tty_struct *tty) spin_lock_irqsave(&priv->lock, flags); if (priv->outstanding_urbs > URB_UPPER_LIMIT * 2 / 3) { spin_unlock_irqrestore(&priv->lock, flags); - dbg("%s - write limit hit\n", __func__); + dbg("%s - write limit hit", __func__); return 0; } spin_unlock_irqrestore(&priv->lock, flags); @@ -503,13 +503,9 @@ static void visor_read_bulk_callback(struct urb *urb) if (urb->actual_length) { tty = tty_port_tty_get(&port->port); if (tty) { - available_room = tty_buffer_request_room(tty, - urb->actual_length); - if (available_room) { - tty_insert_flip_string(tty, data, - available_room); - tty_flip_buffer_push(tty); - } + tty_insert_flip_string(tty, data, + urb->actual_length); + tty_flip_buffer_push(tty); tty_kref_put(tty); } spin_lock(&priv->lock); @@ -807,10 +803,14 @@ static int clie_3_5_startup(struct usb_serial *serial) { struct device *dev = &serial->dev->dev; int result; - u8 data; + u8 *data; dbg("%s", __func__); + data = kmalloc(1, GFP_KERNEL); + if (!data) + return -ENOMEM; + /* * Note that PEG-300 series devices expect the following two calls. */ @@ -818,36 +818,42 @@ static int clie_3_5_startup(struct usb_serial *serial) /* get the config number */ result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), USB_REQ_GET_CONFIGURATION, USB_DIR_IN, - 0, 0, &data, 1, 3000); + 0, 0, data, 1, 3000); if (result < 0) { dev_err(dev, "%s: get config number failed: %d\n", __func__, result); - return result; + goto out; } if (result != 1) { dev_err(dev, "%s: get config number bad return length: %d\n", __func__, result); - return -EIO; + result = -EIO; + goto out; } /* get the interface number */ result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), USB_REQ_GET_INTERFACE, USB_DIR_IN | USB_RECIP_INTERFACE, - 0, 0, &data, 1, 3000); + 0, 0, data, 1, 3000); if (result < 0) { dev_err(dev, "%s: get interface number failed: %d\n", __func__, result); - return result; + goto out; } if (result != 1) { dev_err(dev, "%s: get interface number bad return length: %d\n", __func__, result); - return -EIO; + result = -EIO; + goto out; } - return generic_startup(serial); + result = generic_startup(serial); +out: + kfree(data); + + return result; } static int treo_attach(struct usb_serial *serial) |