From patchwork Thu Mar 30 15:31:03 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Salil Mehta X-Patchwork-Id: 96306 Delivered-To: patch@linaro.org Received: by 10.140.89.233 with SMTP id v96csp294685qgd; Thu, 30 Mar 2017 08:33:20 -0700 (PDT) X-Received: by 10.99.94.198 with SMTP id s189mr271352pgb.211.1490888000732; Thu, 30 Mar 2017 08:33:20 -0700 (PDT) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id h14si2046425pgf.134.2017.03.30.08.33.20; Thu, 30 Mar 2017 08:33:20 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934806AbdC3PdR (ORCPT + 20 others); Thu, 30 Mar 2017 11:33:17 -0400 Received: from szxga02-in.huawei.com ([45.249.212.188]:4861 "EHLO dggrg02-dlp.huawei.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S934784AbdC3PdO (ORCPT ); Thu, 30 Mar 2017 11:33:14 -0400 Received: from 172.30.72.57 (EHLO DGGEML402-HUB.china.huawei.com) ([172.30.72.57]) by dggrg02-dlp.huawei.com (MOS 4.4.6-GA FastPath queued) with ESMTP id AKU85051; Thu, 30 Mar 2017 23:33:11 +0800 (CST) Received: from S00293818-DELL1.china.huawei.com (10.203.181.152) by DGGEML402-HUB.china.huawei.com (10.3.17.38) with Microsoft SMTP Server id 14.3.301.0; Thu, 30 Mar 2017 23:32:59 +0800 From: Salil Mehta To: CC: , , , , , , Kejian Yan Subject: [PATCH net 16/19] net: hns: Simplify the exception sequence in hns_ppe_init() Date: Thu, 30 Mar 2017 16:31:03 +0100 Message-ID: <20170330153106.14344-17-salil.mehta@huawei.com> X-Mailer: git-send-email 2.8.3 In-Reply-To: <20170330153106.14344-1-salil.mehta@huawei.com> References: <20170330153106.14344-1-salil.mehta@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.203.181.152] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090206.58DD2537.0155, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 74f981841fced103a55636cd7813bda2 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kejian Yan We need to free all ppe submodule if it fails to initialize ppe by any fault, so this patch will free all ppe resource before hns_ppe_init() returns exception situation Reported-by: JinchuanTian Signed-off-by: Kejian Yan Reviewed-by: Salil Mehta Signed-off-by: Salil Mehta --- drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) -- 2.7.4 diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c index 6ea8722..eba406b 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c @@ -496,17 +496,17 @@ void hns_ppe_get_stats(struct hns_ppe_cb *ppe_cb, u64 *data) */ int hns_ppe_init(struct dsaf_device *dsaf_dev) { - int i, k; int ret; + int i; for (i = 0; i < HNS_PPE_COM_NUM; i++) { ret = hns_ppe_common_get_cfg(dsaf_dev, i); if (ret) - goto get_ppe_cfg_fail; + goto get_cfg_fail; ret = hns_rcb_common_get_cfg(dsaf_dev, i); if (ret) - goto get_rcb_cfg_fail; + goto get_cfg_fail; hns_ppe_get_cfg(dsaf_dev->ppe_common[i]); @@ -518,13 +518,12 @@ int hns_ppe_init(struct dsaf_device *dsaf_dev) return 0; -get_rcb_cfg_fail: - hns_ppe_common_free_cfg(dsaf_dev, i); -get_ppe_cfg_fail: - for (k = i - 1; k >= 0; k--) { - hns_rcb_common_free_cfg(dsaf_dev, k); - hns_ppe_common_free_cfg(dsaf_dev, k); +get_cfg_fail: + for (i = 0; i < HNS_PPE_COM_NUM; i++) { + hns_rcb_common_free_cfg(dsaf_dev, i); + hns_ppe_common_free_cfg(dsaf_dev, i); } + return ret; }