USB: ti_usb_3410_5052: fix dynamic-id matching

The driver failed to take the dynamic ids into account when determining
the device type and therefore all devices were detected as 2-port
devices when using the dynamic-id interface.

Match on the usb-serial-driver field instead of doing redundant id-table
searches.

Reported-by: Anders Hammarquist <iko@iko.pp.se>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 7182bb774b7958f70f50efb823b084c5ea9284d5..375b5a400b6fb8a63b0aaa83272299a15aef6e83 100644 (file)
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -371,7 +371,7 @@ static int ti_startup(struct usb_serial *serial)
        usb_set_serial_data(serial, tdev);
 
        /* determine device type */
-       if (usb_match_id(serial->interface, ti_id_table_3410))
+       if (serial->type == &ti_1port_device)
                tdev->td_is_3410 = 1;
        dev_dbg(&dev->dev, "%s - device type is %s\n", __func__,
                tdev->td_is_3410 ? "3410" : "5052");