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=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_RED, 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 D1887C433E9 for ; Mon, 28 Dec 2020 16:37:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A85D4208D5 for ; Mon, 28 Dec 2020 16:37:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2442177AbgL1Qhh (ORCPT ); Mon, 28 Dec 2020 11:37:37 -0500 Received: from mail.kernel.org ([198.145.29.99]:57636 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729822AbgL1NBf (ORCPT ); Mon, 28 Dec 2020 08:01:35 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 30CC9207C9; Mon, 28 Dec 2020 13:01:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1609160479; bh=HJIhZb/jp000vfo5nikW6TJi20kwbfRo40g+g5sqEZg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PM/aYrUFYhPGEGvQ3z4s3kBAt7rzXaSbBOD3yYMBRNbbCUHFw5g+KohL1kIyKrwkz U2yyNnY3NgE3Cb5uvvv38oHFAS1KvJHwILgrn5W3pH0UCk1jjGCATXsbf4e0F+trYL 5J1qxpN9xmvZH+B9URoF8EdD0XoY+BItGxEeFOtU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Zhang Qilong , Sasha Levin Subject: [PATCH 4.9 066/175] staging: greybus: codecs: Fix reference counter leak in error handling Date: Mon, 28 Dec 2020 13:48:39 +0100 Message-Id: <20201228124856.448340696@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201228124853.216621466@linuxfoundation.org> References: <20201228124853.216621466@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Zhang Qilong [ Upstream commit 3952659a6108f77a0d062d8e8487bdbdaf52a66c ] gb_pm_runtime_get_sync has increased the usage counter of the device here. Forgetting to call gb_pm_runtime_put_noidle will result in usage counter leak in the error branch of (gbcodec_hw_params and gbcodec_prepare). We fixed it by adding it. Fixes: c388ae7696992 ("greybus: audio: Update pm runtime support in dai_ops callback") Signed-off-by: Zhang Qilong Link: https://lore.kernel.org/r/20201109131347.1725288-2-zhangqilong3@huawei.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/staging/greybus/audio_codec.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/staging/greybus/audio_codec.c b/drivers/staging/greybus/audio_codec.c index 8a0744b58a329..4c2d6c2d4fb41 100644 --- a/drivers/staging/greybus/audio_codec.c +++ b/drivers/staging/greybus/audio_codec.c @@ -491,6 +491,7 @@ static int gbcodec_hw_params(struct snd_pcm_substream *substream, if (ret) { dev_err_ratelimited(dai->dev, "%d: Error during set_config\n", ret); + gb_pm_runtime_put_noidle(bundle); mutex_unlock(&codec->lock); return ret; } @@ -562,6 +563,7 @@ static int gbcodec_prepare(struct snd_pcm_substream *substream, break; } if (ret) { + gb_pm_runtime_put_noidle(bundle); mutex_unlock(&codec->lock); dev_err_ratelimited(dai->dev, "set_data_size failed:%d\n", ret); -- 2.27.0