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=-20.2 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=unavailable 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 62860C07E9B for ; Mon, 19 Jul 2021 15:00:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4B38361181 for ; Mon, 19 Jul 2021 15:00:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242180AbhGSOTw (ORCPT ); Mon, 19 Jul 2021 10:19:52 -0400 Received: from mail.kernel.org ([198.145.29.99]:53426 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242131AbhGSOSm (ORCPT ); Mon, 19 Jul 2021 10:18:42 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id D42246112D; Mon, 19 Jul 2021 14:59:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626706762; bh=lHdeqfKYjwgtzBUNGdz46DWAGCPWre0/g1WWiMcGvN0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=StXtkhvSWjqaUPTOUmJPQZOm/B7XMGd4JSmnCkmjx3G5Eh23fkmjIZO2yDGMDPfsI 3z7GDglHoTpBErkQn1KxwGfWJ4tzAYcwdq8vv/07IbDRRFxp2zmFU+aSABi19AmBbN U2onMeu8Kvb5q2JWtXL2QjMpaq047xoGHz0xZwTA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hulk Robot , Zhen Lei , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 4.4 088/188] scsi: mpt3sas: Fix error return value in _scsih_expander_add() Date: Mon, 19 Jul 2021 16:51:12 +0200 Message-Id: <20210719144933.596548323@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210719144913.076563739@linuxfoundation.org> References: <20210719144913.076563739@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: linux-kernel@vger.kernel.org From: Zhen Lei [ Upstream commit d6c2ce435ffe23ef7f395ae76ec747414589db46 ] When an expander does not contain any 'phys', an appropriate error code -1 should be returned, as done elsewhere in this function. However, we currently do not explicitly assign this error code to 'rc'. As a result, 0 was incorrectly returned. Link: https://lore.kernel.org/r/20210514081300.6650-1-thunder.leizhen@huawei.com Fixes: f92363d12359 ("[SCSI] mpt3sas: add new driver supporting 12GB SAS") Reported-by: Hulk Robot Signed-off-by: Zhen Lei Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index 8735e4257028..49b751a8f5f3 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -5014,8 +5014,10 @@ _scsih_expander_add(struct MPT3SAS_ADAPTER *ioc, u16 handle) handle, parent_handle, (unsigned long long) sas_expander->sas_address, sas_expander->num_phys); - if (!sas_expander->num_phys) + if (!sas_expander->num_phys) { + rc = -1; goto out_fail; + } sas_expander->phy = kcalloc(sas_expander->num_phys, sizeof(struct _sas_phy), GFP_KERNEL); if (!sas_expander->phy) { -- 2.30.2