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Bluetooth: btusb: Fix bluetooth on Intel Macbook 2014

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Commit c13380a555 ("Bluetooth: btusb: Do not require hardcoded
interface numbers") inadvertedly broke bluetooth on Intel Macbook 2014.
The intention was to keep behavior intact when BTUSB_IFNUM_2 is set and
otherwise allow any interface numbers. The problem is that the new logic
condition omits the case where bInterfaceNumber is 0.

Fix BTUSB_IFNUM_2 handling by allowing both interface number 0 and 2
when the flag is set.

Fixes: c13380a555 ("Bluetooth: btusb: Do not require hardcoded interface numbers")
Reported-by: John Holland <johnbholland@icloud.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217651
Signed-off-by: Tomasz Moń <tomasz.mon@nordicsemi.no>
Tested-by: John Holland<johnbholland@icloud.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
Tomasz Moń 2023-07-13 12:25:14 +02:00 committed by Luiz Augusto von Dentz
parent 3dcaa192ac
commit 95b7015433
1 changed files with 1 additions and 0 deletions
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1
drivers/bluetooth/btusb.c
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@ -4104,6 +4104,7 @@ static int btusb_probe(struct usb_interface *intf,
BT_DBG("intf %p id %p", intf, id); BT_DBG("intf %p id %p", intf, id);
if ((id->driver_info & BTUSB_IFNUM_2) && if ((id->driver_info & BTUSB_IFNUM_2) &&
(intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
(intf->cur_altsetting->desc.bInterfaceNumber != 2)) (intf->cur_altsetting->desc.bInterfaceNumber != 2))
return -ENODEV; return -ENODEV;