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=-6.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 157DBC32771 for ; Fri, 10 Jan 2020 02:00:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CE7BC2072E for ; Fri, 10 Jan 2020 02:00:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="UhkNF2i6" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730732AbgAJCAH (ORCPT ); Thu, 9 Jan 2020 21:00:07 -0500 Received: from mail-pg1-f196.google.com ([209.85.215.196]:37495 "EHLO mail-pg1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730359AbgAJCAG (ORCPT ); Thu, 9 Jan 2020 21:00:06 -0500 Received: by mail-pg1-f196.google.com with SMTP id q127so216616pga.4 for ; Thu, 09 Jan 2020 18:00:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=TvCF4TaFq4NHuFxKrB7bfyibK4IZqbz7rtt+95xhHqo=; b=UhkNF2i6KaXltxMZXRbU88Ilw8OkJEXI6REMlfxksP+PYmlbEzftvOHIMyN7fYK08w Tqaihhp66NIs8LcSomRTfLax8Nm7UYv5neFP9D2xNLpcTUtO7X3de+NrsxNZIQDFZDEG k9Pr+5/igmkqzgl3qbPWOO52LVuTykmOmSX5w= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=TvCF4TaFq4NHuFxKrB7bfyibK4IZqbz7rtt+95xhHqo=; b=UDFIRfGygbxNej/3zoko3ykYdlLdbLr+Sr/WX3axnO1DJAqnxdT0Lyp2NdQMHmAFbD INGsSfRWNhnjbD2BEHMSadJTxt/RfkE3luE6t8Y1GRIU/X1XP09MMZdIL0lc/hoPTtTY MXQ+RlDARhE2Pj8em43Wgnu7p1Xlnqyk1aXozZ3H4ALPrGSJ0hvLmK5Up6afbyE+2H2k mibce9t5Ts5IRtFvfmXn61SEiLhpS1+PlG1/qEnbP7BBiGaijWDi5ng5taRFzwObmREg YMUPlgL9RLX6jmgOb/sA3YXRgkZ6X6ws0VJEWa0210hVCZVPoy6IwePK6JL8bVQyhiTD 13QQ== X-Gm-Message-State: APjAAAWtMjVVRmaUjbR3O/JaRe6m9dwNDa24g7HSDOpacHeE0L4mpJ+m jRGKqS2F5D1nfkfiiM0pP4eiMA== X-Google-Smtp-Source: APXvYqy8CIzTVvdPT0/w3B7JHwB2lbAlbMW9Fuh1+JhZtXYS4f9PXX9xu9MMgcycQmesK9L3XRRSPA== X-Received: by 2002:a63:4641:: with SMTP id v1mr1171519pgk.389.1578621605868; Thu, 09 Jan 2020 18:00:05 -0800 (PST) Received: from ikjn-p920.tpe.corp.google.com ([2401:fa00:1:10:254e:2b40:ef8:ee17]) by smtp.gmail.com with ESMTPSA id t30sm233232pgl.75.2020.01.09.18.00.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Jan 2020 18:00:05 -0800 (PST) From: Ikjoon Jang To: linux-pm@vger.kernel.org, "RafaelJ . Wysocki" Cc: DanielLezcano , linux-kernel@vger.kernel.org, Ikjoon Jang Subject: [PATCH] BUG-REPORT: cpuidle: teo: intervals[] array index out Date: Fri, 10 Jan 2020 09:59:17 +0800 Message-Id: <20200110015917.32825-1-ikjn@chromium.org> X-Mailer: git-send-email 2.25.0.rc1.283.g88dfdc4193-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This seems to be a simple bug in rotating array index. --- drivers/cpuidle/governors/teo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/cpuidle/governors/teo.c b/drivers/cpuidle/governors/teo.c index de7e706efd46..6deaaf5f05b5 100644 --- a/drivers/cpuidle/governors/teo.c +++ b/drivers/cpuidle/governors/teo.c @@ -198,7 +198,7 @@ static void teo_update(struct cpuidle_driver *drv, struct cpuidle_device *dev) * pattern detection. */ cpu_data->intervals[cpu_data->interval_idx++] = measured_ns; - if (cpu_data->interval_idx > INTERVALS) + if (cpu_data->interval_idx >= INTERVALS) cpu_data->interval_idx = 0; } -- 2.24.1.735.g03f4e72817-goog