From patchwork Mon Jul 12 06:12:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 473449 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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, 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_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 A1092C11F7E for ; Mon, 12 Jul 2021 08:08:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8E1DF6191F for ; Mon, 12 Jul 2021 08:08:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230324AbhGLIKo (ORCPT ); Mon, 12 Jul 2021 04:10:44 -0400 Received: from mail.kernel.org ([198.145.29.99]:56498 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353730AbhGLICs (ORCPT ); Mon, 12 Jul 2021 04:02:48 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id C9B8461CFE; Mon, 12 Jul 2021 07:56:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626076617; bh=x3X8Qd2GQ7oKmQkuJSd/9owtp2AJ54zXV29Fyj9r1Uk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ghl0bGX3fbKch/+Jf1ykta82y2XLRQ5mea+j6eLJExTpwNjnZrYqUCAo8JMJJEh40 3exPlGaQPOKpxFWIJvVXAnSipZoIfWos+EXe0sTPup+7p82uDaH/Sn+ltv7nTE0eEB DwKkg0597Ddrno3D5Adgkd9pZQFCUXifqSEdGJRs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Junhao He , Qi Liu , Suzuki K Poulose , Mathieu Poirier , Sasha Levin Subject: [PATCH 5.13 720/800] coresight: core: Fix use of uninitialized pointer Date: Mon, 12 Jul 2021 08:12:23 +0200 Message-Id: <20210712061043.337746564@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210712060912.995381202@linuxfoundation.org> References: <20210712060912.995381202@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Junhao He [ Upstream commit d777a8991847729ec4e2a13fcad58c2b00bb19dc ] Currently the pointer "sink" might be checked before initialized. Fix this by initializing this pointer. Link: https://lore.kernel.org/r/1620912469-52222-2-git-send-email-liuqi115@huawei.com Fixes: 6d578258b955 ("coresight: Make sysfs functional on topologies with per core sink") Signed-off-by: Junhao He Signed-off-by: Qi Liu Signed-off-by: Suzuki K Poulose Signed-off-by: Mathieu Poirier Link: https://lore.kernel.org/r/20210614175901.532683-3-mathieu.poirier@linaro.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/hwtracing/coresight/coresight-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwtracing/coresight/coresight-core.c b/drivers/hwtracing/coresight/coresight-core.c index 6c68d34d956e..4ddf3d233844 100644 --- a/drivers/hwtracing/coresight/coresight-core.c +++ b/drivers/hwtracing/coresight/coresight-core.c @@ -608,7 +608,7 @@ static struct coresight_device * coresight_find_enabled_sink(struct coresight_device *csdev) { int i; - struct coresight_device *sink; + struct coresight_device *sink = NULL; if ((csdev->type == CORESIGHT_DEV_TYPE_SINK || csdev->type == CORESIGHT_DEV_TYPE_LINKSINK) &&