From patchwork Tue Sep 1 15:08:18 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 264538 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=-13.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 3980BC433E6 for ; Tue, 1 Sep 2020 16:49:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 02A0A2078B for ; Tue, 1 Sep 2020 16:49:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598978955; bh=wfyP6ErZoZxY7ltPAxt9V2YaYyKjCJkU6bza5vC6jfQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=FdvndYL0YxXdw5ezYIXXPCzKN0x7z5ZwQxZbRdHstF9ABj/NpTwOKGFsyQPcKrSsY gel1pOmqIaN3p0qFY7QuR2KjwXS30wNjY2E5EroF67fXIDAj0WrB4pqdvLD7bk03XL Nvl1xRrTvpwDuMmBFfA38p2CkwjdzeJViZvy9drc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730186AbgIAP1P (ORCPT ); Tue, 1 Sep 2020 11:27:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:53856 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730183AbgIAP1N (ORCPT ); Tue, 1 Sep 2020 11:27:13 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (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 C2795206FA; Tue, 1 Sep 2020 15:27:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598974032; bh=wfyP6ErZoZxY7ltPAxt9V2YaYyKjCJkU6bza5vC6jfQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=x6dAE+RKDnkaOF2JKqOj4UmVscY4ftDN+DrNBrHpIqGs6LmjledWo7L4ngyphO6DV Qcwp4aYnNcl1XpVhcLvNMWOxsCrGo7R0XuSBLKqSz8mBKirbzLCS2hfxmOc+nF7heR qXFUyH5s5czYtIoeIEcBoXZG1gaC5BCgwh/nkezE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Qiushi Wu , Mark Brown , Sasha Levin Subject: [PATCH 5.4 018/214] ASoC: img-parallel-out: Fix a reference count leak Date: Tue, 1 Sep 2020 17:08:18 +0200 Message-Id: <20200901150953.840058605@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200901150952.963606936@linuxfoundation.org> References: <20200901150952.963606936@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: Qiushi Wu [ Upstream commit 6b9fbb073636906eee9fe4d4c05a4f445b9e2a23 ] pm_runtime_get_sync() increments the runtime PM usage counter even when it returns an error code, causing incorrect ref count if pm_runtime_put_noidle() is not called in error handling paths. Thus call pm_runtime_put_noidle() if pm_runtime_get_sync() fails. Signed-off-by: Qiushi Wu Link: https://lore.kernel.org/r/20200614033344.1814-1-wu000273@umn.edu Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/img/img-parallel-out.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/sound/soc/img/img-parallel-out.c b/sound/soc/img/img-parallel-out.c index 5ddbe3a31c2e9..4da49a42e8547 100644 --- a/sound/soc/img/img-parallel-out.c +++ b/sound/soc/img/img-parallel-out.c @@ -163,8 +163,10 @@ static int img_prl_out_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) } ret = pm_runtime_get_sync(prl->dev); - if (ret < 0) + if (ret < 0) { + pm_runtime_put_noidle(prl->dev); return ret; + } reg = img_prl_out_readl(prl, IMG_PRL_OUT_CTL); reg = (reg & ~IMG_PRL_OUT_CTL_EDGE_MASK) | control_set;