Hi,
> Commit dbcbabf7da92 ("HID: logitech-dj: fix return value of
> logi_dj_recv_query_hidpp_devices") made logi_dj_recv_query_hidpp_devices
> return the return value of hid_hw_raw_request instead of unconditionally
> returning 0.
> But hid_hw_raw_request returns the report-size on a successful request
> (and a negative error-code on failure) where as the callers of
> logi_dj_recv_query_hidpp_devices expect a 0 return on success.
> This commit fixes things so that either the negative error gets returned
> or 0 on success, fixing HID++ receivers such as the Logitech nano receivers
> no longer working.
> Cc: YueHaibing <yuehaibing@xxxxxxxxxx>
> Cc: Rafael J. Wysocki <rjw@xxxxxxxxxxxxx>
> Cc: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
> Fixes: dbcbabf7da92 ("HID: logitech-dj: fix return value of logi_dj_recv_query_hidpp_devices")
> Reported-by: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
> Reported-by: Rafael J. Wysocki <rjw@xxxxxxxxxxxxx>
> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
> Tested-by: Rafael J. Wysocki <rjw@xxxxxxxxxxxxx>
Reviewed-by: Petr Vorel <pvorel@xxxxxxx>
Tested-by: Petr Vorel <pvorel@xxxxxxx>
Kind regards,
Petr
