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=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 7B3BDC433DF for ; Fri, 10 Jul 2020 09:28:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 62BC020725 for ; Fri, 10 Jul 2020 09:28:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728058AbgGJJ2m (ORCPT ); Fri, 10 Jul 2020 05:28:42 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:7833 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726787AbgGJJ2k (ORCPT ); Fri, 10 Jul 2020 05:28:40 -0400 Received: from DGGEMS402-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 2DF51369B60CD5918C10; Fri, 10 Jul 2020 17:28:38 +0800 (CST) Received: from huawei.com (10.175.104.57) by DGGEMS402-HUB.china.huawei.com (10.3.19.202) with Microsoft SMTP Server id 14.3.487.0; Fri, 10 Jul 2020 17:28:27 +0800 From: Lu Wei To: , , , , , , , Subject: [PATCH v3 2/2] intel-vbtn: Fix return value check in check_acpi_dev() Date: Fri, 10 Jul 2020 17:30:18 +0800 Message-ID: <1594373418-24833-3-git-send-email-luwei32@huawei.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1594373418-24833-1-git-send-email-luwei32@huawei.com> References: <1594373418-24833-1-git-send-email-luwei32@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.175.104.57] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In the function check_acpi_dev(), if it fails to create platform device, the return value is ERR_PTR() or NULL. Thus it must use IS_ERR_OR_NULL to check return value. Fixes: 332e081225fc ("intel-vbtn: new driver for Intel Virtual Button") Reported-by: Hulk Robot Signed-off-by: Lu Wei --- drivers/platform/x86/intel-vbtn.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/platform/x86/intel-vbtn.c b/drivers/platform/x86/intel-vbtn.c index b588093..e1aa526 100644 --- a/drivers/platform/x86/intel-vbtn.c +++ b/drivers/platform/x86/intel-vbtn.c @@ -251,7 +251,7 @@ check_acpi_dev(acpi_handle handle, u32 lvl, void *context, void **rv) return AE_OK; if (acpi_match_device_ids(dev, ids) == 0) - if (acpi_create_platform_device(dev, NULL)) + if (!IS_ERR_OR_NULL(acpi_create_platform_device(dev, NULL))) dev_info(&dev->dev, "intel-vbtn: created platform device\n"); -- 2.7.4