From patchwork Mon Feb 15 15:57:16 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Carpenter X-Patchwork-Id: 12088917 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=-15.8 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, UNPARSEABLE_RELAY 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 58F14C433E6 for ; Mon, 15 Feb 2021 16:17:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1AF0B6024A for ; Mon, 15 Feb 2021 16:17:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231976AbhBOQRJ (ORCPT ); Mon, 15 Feb 2021 11:17:09 -0500 Received: from userp2120.oracle.com ([156.151.31.85]:40832 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232574AbhBOP7D (ORCPT ); Mon, 15 Feb 2021 10:59:03 -0500 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 11FFoBbm121923; Mon, 15 Feb 2021 15:57:30 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=date : from : to : cc : subject : message-id : mime-version : content-type; s=corp-2020-01-29; bh=DgV2X2itjEB7vni0gXukDnNbihcxKMHYwvnAV8Y5ZW8=; b=EL0iVfkq1vNYRZFLSUH2rjenEeqBfKzNfUxXiC/06vxI6qTYBHz9uH1jdyRZ1z4d+3oj 0nvSeEKZRNzN7K+Pl9ILwppJuOcxGwkCBFgujG41f7Uf+CbdIbat0PQ8DRwagP+yYVxU uIHoX6IvB2UB7ybh8+9edGcShCzJx1IKaWoiuIfzhHZ1LjO654yK3/bxqiMP6itrqbju A97eYzH4gcHcFOrZQ/Ltsp3nhnnfRH1SqYeize2t4gUFl/i0soE6kIaHG9qA5/mXHg2q xD5Neo5cW3zbymz/zOxbjtcVkZz3TKpozZ//NqYkB4UOwNdeE8ZFztbB4HL2yuUFDosx vA== Received: from userp3030.oracle.com (userp3030.oracle.com [156.151.31.80]) by userp2120.oracle.com with ESMTP id 36p7dnccjg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 15 Feb 2021 15:57:30 +0000 Received: from pps.filterd (userp3030.oracle.com [127.0.0.1]) by userp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 11FFnv1M009643; Mon, 15 Feb 2021 15:57:28 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userp3030.oracle.com with ESMTP id 36prpvsdnm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 15 Feb 2021 15:57:28 +0000 Received: from abhmp0017.oracle.com (abhmp0017.oracle.com [141.146.116.23]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 11FFvQmt002562; Mon, 15 Feb 2021 15:57:26 GMT Received: from mwanda (/102.36.221.92) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 15 Feb 2021 07:57:25 -0800 Date: Mon, 15 Feb 2021 18:57:16 +0300 From: Dan Carpenter To: Felipe Balbi Cc: Greg Kroah-Hartman , Dan Carpenter , Nishad Kamdar , Lorenzo Colitti , David Lechner , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org Subject: [PATCH] USB: gadget: Fix a configfs return code Message-ID: MIME-Version: 1.0 Content-Disposition: inline X-Mailer: git-send-email haha only kidding X-Proofpoint-IMR: 1 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9896 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 mlxlogscore=994 phishscore=0 adultscore=0 mlxscore=0 suspectscore=0 malwarescore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2102150125 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9896 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 suspectscore=0 mlxscore=0 phishscore=0 spamscore=0 adultscore=0 clxscore=1011 impostorscore=0 priorityscore=1501 lowpriorityscore=0 malwarescore=0 mlxlogscore=931 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2102150125 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org If the string is invalid, this should return -EINVAL instead of 0. Fixes: 73517cf49bd4 ("usb: gadget: add RNDIS configfs options for class/subclass/protocol") Signed-off-by: Dan Carpenter Acked-by: Lorenzo Colitti --- drivers/usb/gadget/function/u_ether_configfs.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/usb/gadget/function/u_ether_configfs.h b/drivers/usb/gadget/function/u_ether_configfs.h index 3dfb460908fa..f558c3139ebe 100644 --- a/drivers/usb/gadget/function/u_ether_configfs.h +++ b/drivers/usb/gadget/function/u_ether_configfs.h @@ -182,12 +182,11 @@ out: \ size_t len) \ { \ struct f_##_f_##_opts *opts = to_f_##_f_##_opts(item); \ - int ret; \ + int ret = -EINVAL; \ u8 val; \ \ mutex_lock(&opts->lock); \ - ret = sscanf(page, "%02hhx", &val); \ - if (ret > 0) { \ + if (sscanf(page, "%02hhx", &val) > 0) { \ opts->_n_ = val; \ ret = len; \ } \