uwb: fix device quirk on big-endian hosts

commit 41318a2b82f5d5fe1fb408f6d6e0b22aa557111d upstream.

Add missing endianness conversion when using the USB device-descriptor
idProduct field to apply a hardware quirk.

Fixes: 1ba47da52712 ("uwb: add the i1480 DFU driver")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/uwb/i1480/dfu/usb.c b/drivers/uwb/i1480/dfu/usb.c
index b71291b..a0102f8 100644 (file)
--- a/drivers/uwb/i1480/dfu/usb.c
+++ b/drivers/uwb/i1480/dfu/usb.c
@@ -341,6 +341,7 @@ error_submit_ep1:
 static
 int i1480_usb_probe(struct usb_interface *iface, const struct usb_device_id *id)
 {
+       struct usb_device *udev = interface_to_usbdev(iface);
        struct i1480_usb *i1480_usb;
        struct i1480 *i1480;
        struct device *dev = &iface->dev;
@@ -352,8 +353,8 @@ int i1480_usb_probe(struct usb_interface *iface, const struct usb_device_id *id)
                        iface->cur_altsetting->desc.bInterfaceNumber);
                goto error;
        }
-       if (iface->num_altsetting > 1
-           && interface_to_usbdev(iface)->descriptor.idProduct == 0xbabe) {
+       if (iface->num_altsetting > 1 &&
+                       le16_to_cpu(udev->descriptor.idProduct) == 0xbabe) {
                /* Need altsetting #1 [HW QUIRK] or EP1 won't work */
                result = usb_set_interface(interface_to_usbdev(iface), 0, 1);
                if (result < 0)