[Bluetooth] Ignore additional interfaces of BPA 100/105 devices

If a BPA 100/105 device contains more then one interface then ignore the
additional interfaces, because they are unused.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/bluetooth/bpa10x.c b/drivers/bluetooth/bpa10x.c
index 4fa85234d8b5..0db0400519c9 100644
--- a/drivers/bluetooth/bpa10x.c
+++ b/drivers/bluetooth/bpa10x.c
@@ -550,6 +550,9 @@ static int bpa10x_probe(struct usb_interface *intf, const struct usb_device_id *
         if (ignore)
                 return -ENODEV;
 
+        if (intf->cur_altsetting->desc.bInterfaceNumber > 0)
+                return -ENODEV;
+
         data = kmalloc(sizeof(*data), GFP_KERNEL);
         if (!data) {
                 BT_ERR("Can't allocate data structure");