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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 ECFCEC47253 for ; Thu, 30 Apr 2020 14:02:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C8F132082E for ; Thu, 30 Apr 2020 14:02:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588255370; bh=jLd/m6vXXjMduVePN9+R0gj6Wj03nfzM/HiOjiE5sA4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=v18/LJk9McV8R7FGmNLgqeQie746B0ZIPj1yFiUHtDT68xZ13/2/eDSJoXQUZe6NO SwZUYJhi4wrmSGos6roYfbIaOEhWmApUQkDmMVsGHp3+g03gMlQ7a4HgxUXsrlY0nP kwWl44qB24xWeaM/mo17GDFfu82AUWi+lSQhhY8E= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729450AbgD3OCt (ORCPT ); Thu, 30 Apr 2020 10:02:49 -0400 Received: from mail.kernel.org ([198.145.29.99]:35510 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728765AbgD3Nxi (ORCPT ); Thu, 30 Apr 2020 09:53:38 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 117E520870; Thu, 30 Apr 2020 13:53:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588254818; bh=jLd/m6vXXjMduVePN9+R0gj6Wj03nfzM/HiOjiE5sA4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QiW3dpIUSAlsiKw+yKeCFCwWTkGdKsmzPMcFuKBgYyOEKaVskqxqFXorj17hBLtoa KF6dHKjgAD+QltwJUMSshBbdJPE/khwFaLUn2gIjG2WOdhDoF7TnEL9HL0IfzG06yl UbOTDW0XkgCbQtWsdTtibzV5q/1sZQMItnT68blc= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: =?UTF-8?q?Amadeusz=20S=C5=82awi=C5=84ski?= , Mark Brown , Sasha Levin , alsa-devel@alsa-project.org Subject: [PATCH AUTOSEL 4.19 11/30] ASoC: codecs: hdac_hdmi: Fix incorrect use of list_for_each_entry Date: Thu, 30 Apr 2020 09:53:06 -0400 Message-Id: <20200430135325.20762-11-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200430135325.20762-1-sashal@kernel.org> References: <20200430135325.20762-1-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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 be2473166bfaf..4594b1447900a 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -148,14 +148,14 @@ 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, -- 2.20.1