From patchwork Mon Mar 15 13:54:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 401229 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 988E5C28E86 for ; Mon, 15 Mar 2021 14:08:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5411B601FD for ; Mon, 15 Mar 2021 14:08:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234978AbhCOOGv (ORCPT ); Mon, 15 Mar 2021 10:06:51 -0400 Received: from mail.kernel.org ([198.145.29.99]:47922 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233191AbhCOOBt (ORCPT ); Mon, 15 Mar 2021 10:01:49 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 13B9E64EF8; Mon, 15 Mar 2021 14:01:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615816909; bh=FTAwELuj2EcQRMLn9mlwt2MunR7r3AyeDut4nIGaRjk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rC7qsszv565+rLEVBc1n2GeCQ18P+X852i5FA3EmbNTO7CqP5a/wodkVl9rVVGx40 7G1X9EUsyfxSSfULBUH0XRNg6BQIU1j+aDEJCOYGEymdllHGJdqDIqIFqlh/V+3NEM QTwQEGESqB2uQE+QCs0A8ylT8SclImH3aPo6GE60= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Lorenzo Colitti , Dan Carpenter Subject: [PATCH 5.11 195/306] USB: gadget: u_ether: Fix a configfs return code Date: Mon, 15 Mar 2021 14:54:18 +0100 Message-Id: <20210315135514.221199882@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210315135507.611436477@linuxfoundation.org> References: <20210315135507.611436477@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Greg Kroah-Hartman From: Dan Carpenter commit 650bf52208d804ad5ee449c58102f8dc43175573 upstream. If the string is invalid, this should return -EINVAL instead of 0. Fixes: 73517cf49bd4 ("usb: gadget: add RNDIS configfs options for class/subclass/protocol") Cc: stable Acked-by: Lorenzo Colitti Signed-off-by: Dan Carpenter Link: https://lore.kernel.org/r/YCqZ3P53yyIg5cn7@mwanda Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/function/u_ether_configfs.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) --- a/drivers/usb/gadget/function/u_ether_configfs.h +++ b/drivers/usb/gadget/function/u_ether_configfs.h @@ -169,12 +169,11 @@ 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; \ } \