From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wenzhuo Lu Subject: [PATCH v3 09/36] e1000/base: add evaluation of e1000_nvm_read return value Date: Fri, 16 Oct 2015 10:50:55 +0800 Message-ID: <1444963882-30931-10-git-send-email-wenzhuo.lu@intel.com> References: <1444804479-14840-1-git-send-email-wenzhuo.lu@intel.com> <1444963882-30931-1-git-send-email-wenzhuo.lu@intel.com> To: dev@dpdk.org Return-path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id C524D9253 for ; Fri, 16 Oct 2015 04:51:49 +0200 (CEST) In-Reply-To: <1444963882-30931-1-git-send-email-wenzhuo.lu@intel.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Adding code to a case where e1000_nvn_read is called, but there is no consideration for when the read fails (returns an error code). Also, this patch adds an error message to a base NVM reading function that is missing it for consistency. This patch is not covering all cases of these conditions, it only covers the code used by the e1000e driver. Signed-off-by: Wenzhuo Lu --- drivers/net/e1000/base/e1000_manage.c | 5 ++++- drivers/net/e1000/base/e1000_nvm.c | 3 +++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/net/e1000/base/e1000_manage.c b/drivers/net/e1000/base/e1000_manage.c index ac4c08a..8564a7f 100644 --- a/drivers/net/e1000/base/e1000_manage.c +++ b/drivers/net/e1000/base/e1000_manage.c @@ -363,9 +363,12 @@ bool e1000_enable_mng_pass_thru(struct e1000_hw *hw) } else if ((hw->mac.type == e1000_82574) || (hw->mac.type == e1000_82583)) { u16 data; + s32 ret_val; factps = E1000_READ_REG(hw, E1000_FACTPS); - e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &data); + ret_val = e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &data); + if (ret_val) + return false; if (!(factps & E1000_FACTPS_MNGCG) && ((data & E1000_NVM_INIT_CTRL2_MNGM) == diff --git a/drivers/net/e1000/base/e1000_nvm.c b/drivers/net/e1000/base/e1000_nvm.c index 966a34c..01be9e4 100644 --- a/drivers/net/e1000/base/e1000_nvm.c +++ b/drivers/net/e1000/base/e1000_nvm.c @@ -585,6 +585,9 @@ s32 e1000_read_nvm_eerd(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) E1000_NVM_RW_REG_DATA); } + if (ret_val) + DEBUGOUT1("NVM read error: %d\n", ret_val); + return ret_val; } -- 1.9.3