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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 46E64C433E2 for ; Tue, 16 Jun 2020 16:10:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1E430208D5 for ; Tue, 16 Jun 2020 16:10:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592323804; bh=qTgrEBZKZMWmg0X6f6sF+T8F0d7Vb3RU2qYh7J8sQn8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=BNEBMf1vGWjK0z2X6KPRFet9OGl7ZMHPX7HRqJbLG55fBUrvw/3bIXGwMwdTZy+22 BhAXBEzVlBSArtE6QcAgjURqR984a+oUU8kmsmHOK282fGwYF3hexTpieVT2bDiw7P z3KY0JTq9OgrGBpxK69b8QjkV4L3T9h7pJylACBA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732024AbgFPPou (ORCPT ); Tue, 16 Jun 2020 11:44:50 -0400 Received: from mail.kernel.org ([198.145.29.99]:35312 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732014AbgFPPop (ORCPT ); Tue, 16 Jun 2020 11:44:45 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 B196521475; Tue, 16 Jun 2020 15:44:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592322285; bh=qTgrEBZKZMWmg0X6f6sF+T8F0d7Vb3RU2qYh7J8sQn8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DV3oVv1shjhmPs7ZaDnR46F5yx5P/lxLQTDZ3XsOJL7iAyt1dhjxrBGw50Y+5n0A+ bgWRHWrZ3iGWTrnhrzI+Sp8etK/IM06PcoyLpOaGEg0QBhzYa+ntdcQ1zasu07FxzM Hoac6i9eh5PRPU2bBbN5DjBKuNunNlowcQ/E5+Xo= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Qiushi Wu , "Rafael J. Wysocki" Subject: [PATCH 5.7 073/163] ACPI: CPPC: Fix reference count leak in acpi_cppc_processor_probe() Date: Tue, 16 Jun 2020 17:34:07 +0200 Message-Id: <20200616153110.345119998@linuxfoundation.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200616153106.849127260@linuxfoundation.org> References: <20200616153106.849127260@linuxfoundation.org> User-Agent: quilt/0.66 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: Qiushi Wu commit 4d8be4bc94f74bb7d096e1c2e44457b530d5a170 upstream. kobject_init_and_add() takes reference even when it fails. If this function returns an error, kobject_put() must be called to properly clean up the memory associated with the object. Previous commit "b8eb718348b8" fixed a similar problem. Fixes: 158c998ea44b ("ACPI / CPPC: add sysfs support to compute delivered performance") Signed-off-by: Qiushi Wu Cc: 4.10+ # 4.10+ Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/cppc_acpi.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/acpi/cppc_acpi.c +++ b/drivers/acpi/cppc_acpi.c @@ -846,6 +846,7 @@ int acpi_cppc_processor_probe(struct acp "acpi_cppc"); if (ret) { per_cpu(cpc_desc_ptr, pr->id) = NULL; + kobject_put(&cpc_ptr->kobj); goto out_free; }