[PATCH] USB: pl2303_update_line_status data length fix

Minimum data length must be UART_STATE + 1, as data[UART_STATE] is being
accessed for the new line_state. Although PL-2303 hardware is not
expected to send data with exactly UART_STATE length, this keeps it on
the safe side.

Signed-off-by: Horst Schirmeier <horst@schirmeier.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index c96ba9fc19e0..f03721056190 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -810,7 +810,7 @@ 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 ||