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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, 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 24C5AC282C8 for ; Mon, 28 Jan 2019 06:50:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EB87D2148E for ; Mon, 28 Jan 2019 06:50:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726778AbfA1GuP (ORCPT ); Mon, 28 Jan 2019 01:50:15 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:2785 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726750AbfA1GuO (ORCPT ); Mon, 28 Jan 2019 01:50:14 -0500 Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 9DA7BCAA8EE3B1E2EDCA; Mon, 28 Jan 2019 14:50:11 +0800 (CST) Received: from localhost (10.177.31.96) by DGGEMS410-HUB.china.huawei.com (10.3.19.210) with Microsoft SMTP Server id 14.3.408.0; Mon, 28 Jan 2019 14:50:02 +0800 From: YueHaibing To: , , , , CC: , , , YueHaibing Subject: [PATCH 2/2] iwlwifi: Use struct_size() in kzalloc Date: Mon, 28 Jan 2019 14:44:32 +0800 Message-ID: <20190128064432.17576-3-yuehaibing@huawei.com> X-Mailer: git-send-email 2.10.2.windows.1 In-Reply-To: <20190128064432.17576-1-yuehaibing@huawei.com> References: <20190128064432.17576-1-yuehaibing@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.177.31.96] X-CFilter-Loop: Reflected Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Use struct_size() in kzalloc instead of the 'regd_to_copy' Signed-off-by: YueHaibing --- drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c index 569cc50..cb9e722 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c @@ -1093,7 +1093,7 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg, const u8 *nvm_chan = cfg->nvm_type == IWL_NVM_EXT ? iwl_ext_nvm_channels : iwl_nvm_channels; struct ieee80211_regdomain *regd, *copy_rd; - int size_of_regd, regd_to_copy; + int size_of_regd; struct ieee80211_reg_rule *rule; struct regdb_ptrs *regdb_ptrs; enum nl80211_band band; @@ -1193,10 +1193,8 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg, * Narrow down regdom for unused regulatory rules to prevent hole * between reg rules to wmm rules. */ - regd_to_copy = sizeof(struct ieee80211_regdomain) + - valid_rules * sizeof(struct ieee80211_reg_rule); - - copy_rd = kmemdup(regd, regd_to_copy, GFP_KERNEL); + copy_rd = kmemdup(regd, struct_size(regd, reg_rules, valid_rules), + GFP_KERNEL); if (!copy_rd) copy_rd = ERR_PTR(-ENOMEM); -- 2.7.4