From patchwork Mon Mar 29 07:58:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 411270 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 6D052C433EA for ; Mon, 29 Mar 2021 08:40:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 40DD7619BB for ; Mon, 29 Mar 2021 08:40:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233603AbhC2IkQ (ORCPT ); Mon, 29 Mar 2021 04:40:16 -0400 Received: from mail.kernel.org ([198.145.29.99]:34080 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234639AbhC2IjU (ORCPT ); Mon, 29 Mar 2021 04:39:20 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6923A60C3D; Mon, 29 Mar 2021 08:39:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1617007149; bh=JxVYiWqHneHdJDkkpquqAtgbGEcks6zWVo/NuiU6eV8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=r5vMOmuVwbcCClkaiwXKTjgDCVKpVxHKOFgTHjP91+9qTjYyyymj+6MXeQ+9+pFIF cXTnm2oUbwbA7FPq70x9Fu7qZ25g79N7W1MCfLNJ4pUyPqxWRz98ycNPuoQKOpnjTZ UE64y3PRwJZzSFb1TRR1zuT59xZGRb3ZRd6woKM4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Divya Bharathi , Mario Limonciello , Alexander Naumann , Hans de Goede , Sasha Levin Subject: [PATCH 5.11 194/254] platform/x86: dell-wmi-sysman: Make sysman_init() return -ENODEV of the interfaces are not found Date: Mon, 29 Mar 2021 09:58:30 +0200 Message-Id: <20210329075639.484312106@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210329075633.135869143@linuxfoundation.org> References: <20210329075633.135869143@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Hans de Goede [ Upstream commit 32418dd58c957f8fef25b97450d00275967604f1 ] When either the attributes or the password interface is not found, then unregister the 2 wmi drivers again and return -ENODEV from sysman_init(). Fixes: e8a60aa7404b ("platform/x86: Introduce support for Systems Management Driver over WMI for Dell Systems") Cc: Divya Bharathi Cc: Mario Limonciello Reported-by: Alexander Naumann Signed-off-by: Hans de Goede Link: https://lore.kernel.org/r/20210321115901.35072-7-hdegoede@redhat.com Signed-off-by: Sasha Levin --- drivers/platform/x86/dell-wmi-sysman/sysman.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/platform/x86/dell-wmi-sysman/sysman.c b/drivers/platform/x86/dell-wmi-sysman/sysman.c index 99dc2f3bdf49..5dd9b29d939c 100644 --- a/drivers/platform/x86/dell-wmi-sysman/sysman.c +++ b/drivers/platform/x86/dell-wmi-sysman/sysman.c @@ -506,15 +506,17 @@ static int __init sysman_init(void) } ret = init_bios_attr_set_interface(); - if (ret || !wmi_priv.bios_attr_wdev) { - pr_debug("failed to initialize set interface\n"); + if (ret) return ret; - } ret = init_bios_attr_pass_interface(); - if (ret || !wmi_priv.password_attr_wdev) { - pr_debug("failed to initialize pass interface\n"); + if (ret) goto err_exit_bios_attr_set_interface; + + if (!wmi_priv.bios_attr_wdev || !wmi_priv.password_attr_wdev) { + pr_debug("failed to find set or pass interface\n"); + ret = -ENODEV; + goto err_exit_bios_attr_pass_interface; } ret = class_register(&firmware_attributes_class);