From patchwork Tue Sep 1 15:09:26 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: 310241 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 79DF6C433E7 for ; Tue, 1 Sep 2020 16:59:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4F8C921707 for ; Tue, 1 Sep 2020 16:59:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598979576; bh=RA20fT0TwJ5xJ395cUD+YGIQN+UL6HpyNW/jNAwOTuo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=gpgEhWfW3C9sCC/NYS2h7a/ORQS/VD3YmNjNt34GOUdCLUrmfUALVHPXHoz2Du+Zs UxSCysup3G0xXN7jKrS+7hMmCDJY3tEiznvWqRBAsYH9TPAmrXYcOpjsCfIdPmhkp4 MK9t8R9rpaAqiuI97ERcJx/5c79eTTkXyWuZfPps= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729690AbgIAPVm (ORCPT ); Tue, 1 Sep 2020 11:21:42 -0400 Received: from mail.kernel.org ([198.145.29.99]:42518 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729466AbgIAPVh (ORCPT ); Tue, 1 Sep 2020 11:21:37 -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 D894021534; Tue, 1 Sep 2020 15:21:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598973697; bh=RA20fT0TwJ5xJ395cUD+YGIQN+UL6HpyNW/jNAwOTuo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AFiPyhp5eF2Lpew8OEi3kjdeIx6Tlvz02/fvRyVmv3ghUNfQ+unHXWOfnyk8wMgx4 0jVJAn9TJkZnvhmJcGYtkTx5i/Fsro4wkJvZABYLPrnP3Qk7/i8RIcK5ZUzfsjRweA sCR1ei48kUbxxe8CvevLypmJbWqlRHFTMe+5p0Oc= 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 4.19 011/125] ASoC: img-parallel-out: Fix a reference count leak Date: Tue, 1 Sep 2020 17:09:26 +0200 Message-Id: <20200901150935.141848328@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200901150934.576210879@linuxfoundation.org> References: <20200901150934.576210879@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 acc005217be06..f56752662b199 100644 --- a/sound/soc/img/img-parallel-out.c +++ b/sound/soc/img/img-parallel-out.c @@ -166,8 +166,10 @@ 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;