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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 DF9FCC433DF for ; Wed, 19 Aug 2020 16:01:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B48032078D for ; Wed, 19 Aug 2020 16:01:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727915AbgHSQBP (ORCPT ); Wed, 19 Aug 2020 12:01:15 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:35511 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726735AbgHSQBO (ORCPT ); Wed, 19 Aug 2020 12:01:14 -0400 Received: from 1.general.cking.uk.vpn ([10.172.193.212] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1k8QWN-0003Um-Kj; Wed, 19 Aug 2020 16:01:03 +0000 From: Colin King To: Patrick Lai , Banajit Goswami , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Ajit Pandey , Srinivas Kandagatla , Rohit kumar , alsa-devel@alsa-project.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH][next] ASoC: qcom: add missing out of memory check on drvdata->clks allocation Date: Wed, 19 Aug 2020 17:01:03 +0100 Message-Id: <20200819160103.164893-1-colin.king@canonical.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Colin Ian King Currently drvdata->clks is not being checked for an allocation failure, leading to potential null pointer dereferencing. Fix this by adding a check and returning -ENOMEM if an error occurred. Addresses-Coverity: ("Dereference null return value") Fixes: 1220f6a76e77 ("ASoC: qcom: Add common array to initialize soc based core clocks") Signed-off-by: Colin Ian King --- sound/soc/qcom/lpass-apq8016.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/qcom/lpass-apq8016.c b/sound/soc/qcom/lpass-apq8016.c index dd9e3dd014f6..5c8ae225cd5d 100644 --- a/sound/soc/qcom/lpass-apq8016.c +++ b/sound/soc/qcom/lpass-apq8016.c @@ -168,6 +168,8 @@ static int apq8016_lpass_init(struct platform_device *pdev) drvdata->clks = devm_kcalloc(dev, variant->num_clks, sizeof(*drvdata->clks), GFP_KERNEL); + if (!drvdata->clks) + return -ENOMEM; drvdata->num_clks = variant->num_clks; for (i = 0; i < drvdata->num_clks; i++) -- 2.27.0