diff options
Diffstat (limited to 'drivers/usb/serial/pl2303.c')
| -rw-r--r-- | drivers/usb/serial/pl2303.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 41a45a5025b..0eb883f44ad 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -43,8 +43,6 @@ static int debug; #define PL2303_BUF_SIZE 1024 #define PL2303_TMP_BUF_SIZE 1024 -static DECLARE_MUTEX(pl2303_tmp_buf_sem); - struct pl2303_buf { unsigned int buf_size; char *buf_buf; @@ -82,11 +80,11 @@ static struct usb_device_id id_table [] = { MODULE_DEVICE_TABLE (usb, id_table); static struct usb_driver pl2303_driver = { - .owner = THIS_MODULE, .name = "pl2303", .probe = usb_serial_probe, .disconnect = usb_serial_disconnect, .id_table = id_table, + .no_dynamic_id = 1, }; #define SET_LINE_REQUEST_TYPE 0x21 @@ -810,7 +808,7 @@ static void pl2303_update_line_status(struct usb_serial_port *port, struct pl2303_private *priv = usb_get_serial_port_data(port); unsigned long flags; u8 status_idx = UART_STATE; - u8 length = UART_STATE; + u8 length = UART_STATE + 1; if ((le16_to_cpu(port->serial->dev->descriptor.idVendor) == SIEMENS_VENDOR_ID) && (le16_to_cpu(port->serial->dev->descriptor.idProduct) == SIEMENS_PRODUCT_ID_X65 || @@ -924,16 +922,12 @@ static void pl2303_read_bulk_callback (struct urb *urb, struct pt_regs *regs) tty = port->tty; if (tty && urb->actual_length) { + tty_buffer_request_room(tty, urb->actual_length + 1); /* overrun is special, not associated with a char */ if (status & UART_OVERRUN_ERROR) tty_insert_flip_char(tty, 0, TTY_OVERRUN); - - for (i = 0; i < urb->actual_length; ++i) { - if (tty->flip.count >= TTY_FLIPBUF_SIZE) { - tty_flip_buffer_push(tty); - } + for (i = 0; i < urb->actual_length; ++i) tty_insert_flip_char (tty, data[i], tty_flag); - } tty_flip_buffer_push (tty); } |