From patchwork Mon Sep 21 20:58:47 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Coelho X-Patchwork-Id: 7233831 X-Patchwork-Delegate: johannes@sipsolutions.net Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 6BF38BEEC1 for ; Mon, 21 Sep 2015 20:59:22 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 288AF2081E for ; Mon, 21 Sep 2015 20:59:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4E15220810 for ; Mon, 21 Sep 2015 20:59:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932150AbbIUU7O (ORCPT ); Mon, 21 Sep 2015 16:59:14 -0400 Received: from paleale.coelho.fi ([176.9.41.70]:45732 "EHLO farmhouse.coelho.fi" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756350AbbIUU7N (ORCPT ); Mon, 21 Sep 2015 16:59:13 -0400 Received: from 91-157-79-26.elisa-laajakaista.fi ([91.157.79.26] helo=dubbel.ger.corp.intel.com) by farmhouse.coelho.fi with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_CBC_SHA256:128) (Exim 4.86) (envelope-from ) id 1Ze8B5-0006Zh-Rq; Mon, 21 Sep 2015 23:59:12 +0300 From: Luca Coelho To: linux-wireless@vger.kernel.org Cc: Johannes Berg , Luciano Coelho Date: Mon, 21 Sep 2015 23:58:47 +0300 Message-Id: <1442869141-31637-7-git-send-email-luca@coelho.fi> X-Mailer: git-send-email 2.5.1 In-Reply-To: <1442868938.27148.361.camel@coelho.fi> References: <1442868938.27148.361.camel@coelho.fi> X-SA-Exim-Connect-IP: 91.157.79.26 X-SA-Exim-Mail-From: luca@coelho.fi X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Subject: [PATCH 07/21] iwlwifi: mvm: don't NUL-terminate low-latency debugfs file X-SA-Exim-Version: 4.2.1 (built Mon, 06 Jul 2015 07:28:29 +0000) X-SA-Exim-Scanned: Yes (on farmhouse.coelho.fi) Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Johannes Berg There's obviously no reason to write a NUL-terminating byte into the debugfs file. Apparently nobody tried to use this from a tool that doesn't strip NUL bytes though, so we never noticed. Fix it. Signed-off-by: Johannes Berg Signed-off-by: Luciano Coelho --- drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c index 383a316..334ae56 100644 --- a/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c +++ b/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c @@ -1250,11 +1250,10 @@ static ssize_t iwl_dbgfs_low_latency_read(struct file *file, { struct ieee80211_vif *vif = file->private_data; struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); - char buf[3]; + char buf[2]; buf[0] = mvmvif->low_latency ? '1' : '0'; buf[1] = '\n'; - buf[2] = '\0'; return simple_read_from_buffer(user_buf, count, ppos, buf, sizeof(buf)); }