From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E769FC43332 for ; Mon, 15 Mar 2021 14:08:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C233F64F00 for ; Mon, 15 Mar 2021 14:08:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235147AbhCOOHN (ORCPT ); Mon, 15 Mar 2021 10:07:13 -0400 Received: from mail.kernel.org ([198.145.29.99]:48966 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233684AbhCOOCS (ORCPT ); Mon, 15 Mar 2021 10:02:18 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id EFF3164F35; Mon, 15 Mar 2021 14:02:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615816935; bh=+JcAoFLgLXKXXxLZloBbxdahgWcsoABDP2DuTfg0MSM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=C49nuNHO3W4xIRfc4OhkeTE0VKloIGxFbmEfi1spQESJg39RgMdcyH+3DTu9iJvIH bDi5a/qHO+c2rwOFQ3g4Zr7lB0wqbBSJ6reBYpHlk3hqqqHIAt6ZEqOg4pW5MQEE32 Fr4S20v/Trq2yJzVQOx1AP+JxUZzUB7Ez1HwrVn0= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Yorick de Wid Subject: [PATCH 5.10 197/290] Goodix Fingerprint device is not a modem Date: Mon, 15 Mar 2021 14:54:50 +0100 Message-Id: <20210315135548.569097771@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210315135541.921894249@linuxfoundation.org> References: <20210315135541.921894249@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Greg Kroah-Hartman From: Yorick de Wid commit 4d8654e81db7346f915eca9f1aff18f385cab621 upstream. The CDC ACM driver is false matching the Goodix Fingerprint device against the USB_CDC_ACM_PROTO_AT_V25TER. The Goodix Fingerprint device is a biometrics sensor that should be handled in user-space. libfprint has some support for Goodix fingerprint sensors, although not for this particular one. It is possible that the vendor allocates a PID per OEM (Lenovo, Dell etc). If this happens to be the case then more devices from the same vendor could potentially match the ACM modem module table. Signed-off-by: Yorick de Wid Cc: stable Link: https://lore.kernel.org/r/20210213144901.53199-1-ydewid@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-acm.c | 5 +++++ 1 file changed, 5 insertions(+) --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1929,6 +1929,11 @@ static const struct usb_device_id acm_id .driver_info = SEND_ZERO_PACKET, }, + /* Exclude Goodix Fingerprint Reader */ + { USB_DEVICE(0x27c6, 0x5395), + .driver_info = IGNORE_DEVICE, + }, + /* control interfaces without any protocol set */ { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM, USB_CDC_PROTO_NONE) },