[PATCH 3/6] HID: asus: Add hid_is_using_ll_driver(usb_hid_driver) check

[Hans de Goede <hdegoede@redhat.com>]

Add a hid_is_using_ll_driver(usb_hid_driver) check to ensure that the
parent device is an usb_interface, before casting the parent device
pointer to an usb_interface pointer with to_usb_interface().

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/hid/hid-asus.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index b3292ff3f61a..719eff589f92 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -842,7 +842,8 @@ static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	if (drvdata->quirks & QUIRK_IS_MULTITOUCH)
 		drvdata->tp = &asus_i2c_tp;
 
-	if (drvdata->quirks & QUIRK_T100_KEYBOARD) {
+	if ((drvdata->quirks & QUIRK_T100_KEYBOARD) &&
+	    hid_is_using_ll_driver(hdev, &usb_hid_driver)) {
 		struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 
 		if (intf->altsetting->desc.bInterfaceNumber == T100_TPAD_INTF) {
-- 
2.26.0