From patchwork Mon Jun 21 07:52:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robin Zhang X-Patchwork-Id: 94613 X-Patchwork-Delegate: qi.z.zhang@intel.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 1B2B4A0547; Mon, 21 Jun 2021 10:04:01 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 0AE104118D; Mon, 21 Jun 2021 10:03:13 +0200 (CEST) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by mails.dpdk.org (Postfix) with ESMTP id E7D2B411D0; Mon, 21 Jun 2021 10:03:10 +0200 (CEST) IronPort-SDR: u53+I3W2nbIrHIz5m+6LKTBcbGxAAkf/FKf623og96LF4A5auV7PFpKf0dk05dFInfoKXVsbe+ 9MF6eyG+v5BQ== X-IronPort-AV: E=McAfee;i="6200,9189,10021"; a="270643276" X-IronPort-AV: E=Sophos;i="5.83,289,1616482800"; d="scan'208";a="270643276" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Jun 2021 01:03:10 -0700 IronPort-SDR: OobHYa2lMclsJGtZb7dJooqEIY1qqdVsSC/pXYqGob9oDhKYgNoVVxMzF4BS9QqrX+tNL5FV7x Nn2q79gp1bzQ== X-IronPort-AV: E=Sophos;i="5.83,289,1616482800"; d="scan'208";a="452102072" Received: from unknown (HELO intel-npg-odc-srv03.cd.intel.com) ([10.240.178.145]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Jun 2021 01:03:07 -0700 From: Robin Zhang To: dev@dpdk.org Cc: beilei.xing@intel.com, junfeng.guo@intel.com, stevex.yang@intel.com, Robin Zhang , stable@dpdk.org, Christopher Pau Date: Mon, 21 Jun 2021 07:52:04 +0000 Message-Id: <20210621075206.4020456-14-robinx.zhang@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210621075206.4020456-1-robinx.zhang@intel.com> References: <20210618063851.3694702-1-robinx.zhang@intel.com> <20210621075206.4020456-1-robinx.zhang@intel.com> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH v3 13/15] net/i40e/base: fix potentially uninitialized variables in NVM code X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" The status of i40e_read_nvm_word is not checked, so variables set from this function could be used uninitialized. In this case, preserve the existing flow that does not block initialization by initializing these values from the start. Fixes: 8d6c51fcd24b ("i40e/base: get OEM version") Fixes: 2db70574247b ("net/i40e/base: limit PF/VF specific code to that driver only") Cc: stable@dpdk.org Signed-off-by: Christopher Pau Signed-off-by: Robin Zhang --- drivers/net/i40e/base/i40e_adminq.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/i40e/base/i40e_adminq.c b/drivers/net/i40e/base/i40e_adminq.c index eafacbdbec..d27ccde29a 100644 --- a/drivers/net/i40e/base/i40e_adminq.c +++ b/drivers/net/i40e/base/i40e_adminq.c @@ -648,8 +648,10 @@ enum i40e_status_code i40e_init_adminq(struct i40e_hw *hw) { struct i40e_adminq_info *aq = &hw->aq; enum i40e_status_code ret_code; - u16 cfg_ptr, oem_hi, oem_lo; - u16 eetrack_lo, eetrack_hi; + u16 oem_hi = 0, oem_lo = 0; + u16 eetrack_hi = 0; + u16 eetrack_lo = 0; + u16 cfg_ptr = 0; int retry = 0; /* verify input for valid configuration */