From patchwork Mon Feb 25 12:38:49 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yue Haibing X-Patchwork-Id: 1047709 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 447Lkr3dQtz9s71 for ; Mon, 25 Feb 2019 23:25:40 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726881AbfBYMZi (ORCPT ); Mon, 25 Feb 2019 07:25:38 -0500 Received: from szxga04-in.huawei.com ([45.249.212.190]:4164 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726701AbfBYMZi (ORCPT ); Mon, 25 Feb 2019 07:25:38 -0500 Received: from DGGEMS408-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 7DB38D4321004B327591; Mon, 25 Feb 2019 20:25:33 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS408-HUB.china.huawei.com (10.3.19.208) with Microsoft SMTP Server id 14.3.408.0; Mon, 25 Feb 2019 20:25:24 +0800 From: YueHaibing To: Johannes Berg CC: YueHaibing , , , Subject: [PATCH] cfg80211: Use kmemdup in cfg80211_gen_new_ie() Date: Mon, 25 Feb 2019 12:38:49 +0000 Message-ID: <20190225123849.50574-1-yuehaibing@huawei.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Use kmemdup rather than duplicating its implementation Signed-off-by: YueHaibing --- net/wireless/scan.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 287518c6caa4..04d888628f29 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -190,10 +190,9 @@ static size_t cfg80211_gen_new_ie(const u8 *ie, size_t ielen, /* copy subelement as we need to change its content to * mark an ie after it is processed. */ - sub_copy = kmalloc(subie_len, gfp); + sub_copy = kmemdup(subelement, subie_len, gfp); if (!sub_copy) return 0; - memcpy(sub_copy, subelement, subie_len); pos = &new_ie[0];