USB: keyspan: Remove duplicate device entries

The 28xb, as documented in comments, has the same ID's as the 28x.
Remove the duplicated ID's from the device tables, and expand the
comment to document this.

Signed-off-by: Ben Collins <ben.collins@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/serial/keyspan.h b/drivers/usb/serial/keyspan.h
index b52fb65..8bf7263 100644 (file)
--- a/drivers/usb/serial/keyspan.h
+++ b/drivers/usb/serial/keyspan.h
@@ -138,7 +138,8 @@ static int  keyspan_usa67_send_setup        (struct usb_serial *serial,
 
 /* Product IDs post-renumeration.  Note that the 28x and 28xb
    have the same id's post-renumeration but behave identically
-   so it's not an issue. */
+   so it's not an issue. As such, the 28xb is not listed in any
+   of the device tables. */
 #define        keyspan_usa18x_product_id               0x0112
 #define        keyspan_usa19_product_id                0x0107
 #define        keyspan_usa19qi_product_id              0x010c
@@ -482,7 +483,6 @@ static struct usb_device_id keyspan_ids_combined[] = {
        { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_product_id) },
        { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_product_id) },
        { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_product_id) },
-       { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xb_product_id) },
        { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xg_product_id) },
        { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_product_id)},
        { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_product_id)},
@@ -532,7 +532,6 @@ static struct usb_device_id keyspan_2port_ids[] = {
        { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_product_id) },
        { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_product_id) },
        { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_product_id) },
-       { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xb_product_id) },
        { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xg_product_id) },
        { } /* Terminating entry */
 };