From patchwork Fri May 8 12:35:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 226195 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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, 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 8E735C47247 for ; Fri, 8 May 2020 12:57:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 63A1F24963 for ; Fri, 8 May 2020 12:57:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588942639; bh=KwvOtP+4R0a2cE5+I9etc0/2e14g3dLBY2UduyDPhZo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=WVJqXFCd1H1VullL+Iyj7Lm/2UAbxZz62nPj/faELAEkpRTMNNwvVP6w9K8TSknFz 7zOOlxoRtMK/spPxUmHksAeEuOQzpjswzujOYTYUgs3rcGmAC0Q1nRODTK5DHZ6Z1R xi47+m5q3VEs34/Zv/NdeSn78QbE8Jx50lnM9cp8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727778AbgEHM5O (ORCPT ); Fri, 8 May 2020 08:57:14 -0400 Received: from mail.kernel.org ([198.145.29.99]:38968 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730095AbgEHMzr (ORCPT ); Fri, 8 May 2020 08:55:47 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 045DA24969; Fri, 8 May 2020 12:55:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588942547; bh=KwvOtP+4R0a2cE5+I9etc0/2e14g3dLBY2UduyDPhZo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kmtkjEOPl0qlWx1Dq83PG2QJ/EOJrm22CbspYI1Q9Gr4ALL0uC8+jTvvqJCogWXgI POtk9sO06kJDeyRD9+VOWlUwbbcmcr5ponKRDi24CLNygIcupq+EUM9XrB0tmlGjnQ e7hiQYHe9IrgC8yCqUzoVEO46Nhbr4vQ5paB0cGA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, =?utf-8?q?Amadeusz_S=C5=82awi=C5=84ski?= , Mark Brown , Sasha Levin Subject: [PATCH 5.6 21/49] ASoC: codecs: hdac_hdmi: Fix incorrect use of list_for_each_entry Date: Fri, 8 May 2020 14:35:38 +0200 Message-Id: <20200508123045.963551128@linuxfoundation.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200508123042.775047422@linuxfoundation.org> References: <20200508123042.775047422@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Amadeusz Sławiński [ Upstream commit 326b509238171d37402dbe308e154cc234ed1960 ] If we don't find any pcm, pcm will point at address at an offset from the the list head and not a meaningful structure. Fix this by returning correct pcm if found and NULL if not. Found with coccinelle. Signed-off-by: Amadeusz Sławiński Link: https://lore.kernel.org/r/20200415162849.308-1-amadeuszx.slawinski@linux.intel.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/codecs/hdac_hdmi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index e6558475e006d..f0f689ddbefe8 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -142,14 +142,14 @@ static struct hdac_hdmi_pcm * hdac_hdmi_get_pcm_from_cvt(struct hdac_hdmi_priv *hdmi, struct hdac_hdmi_cvt *cvt) { - struct hdac_hdmi_pcm *pcm = NULL; + struct hdac_hdmi_pcm *pcm; list_for_each_entry(pcm, &hdmi->pcm_list, head) { if (pcm->cvt == cvt) - break; + return pcm; } - return pcm; + return NULL; } static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm,