HID: huion: Don't ignore other interfaces

Don't ignore non pen-reporting interfaces as they may be used by some
models reusing the same product ID.
Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/hid-huion.c

@@ -107,17 +107,6 @@ static int huion_tablet_enable(struct hid_device *hdev)
 static int huion_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
 	int ret;
-	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
-
-	/* Ignore interfaces 1 (mouse) and 2 (keyboard) for tablet,
-	 * as they are not used
-	 */
-	switch (id->product) {
-	case USB_DEVICE_ID_HUION_TABLET:
-		if (intf->cur_altsetting->desc.bInterfaceNumber != 0x00)
-			return -ENODEV;
-		break;
-	}
 
 	ret = hid_parse(hdev);
 	if (ret) {
@@ -151,8 +140,13 @@ static int huion_probe(struct hid_device *hdev, const struct hid_device_id *id)
 static int huion_raw_event(struct hid_device *hdev, struct hid_report *report,
 			u8 *data, int size)
 {
-	/* If this is a pen input report then invert the in-range bit */
-	if (report->type == HID_INPUT_REPORT && report->id == 0x07 && size >= 2)
+	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+
+	/* If this is a pen input report */
+	if (intf->cur_altsetting->desc.bInterfaceNumber == 0 &&
+	    report->type == HID_INPUT_REPORT &&
+	    report->id == 0x07 && size >= 2)
+		/* Invert the in-range bit */
 		data[1] ^= 0x40;
 
 	return 0;