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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D8215EEB57B for ; Sat, 9 Sep 2023 00:25:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240306AbjIIA0A (ORCPT ); Fri, 8 Sep 2023 20:26:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58084 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343692AbjIIAZ5 (ORCPT ); Fri, 8 Sep 2023 20:25:57 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 117692105; Fri, 8 Sep 2023 17:25:18 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F2319C116A6; Sat, 9 Sep 2023 00:24:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1694219080; bh=WO6hK4F7wbszPm4mhvb7JalFGwN6ho4o50dfBCfv5eY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jfE0EV8ZKG/WlezkLCVrZDqqMr8YxcsoamMYZnCXYl2EJZRt2PMn6rftghIAfjBxZ 4aVGrUKxLqI4MNMet0UdpyvqF7sMigF3kDjqEz8pKBx0we4WOZ5lyxPSCnr4Cd19h5 5+nyFGs8W3Y3cUgZI+P4PZfV+n/Hg4ZiTRogD66FAXYR4nIJlBz4JwKcZ4PhEFKFYL C8sLh/K3hqmPv+AWofoUo+7/vVpTnNvnrc7LdOm8lx7Vb5RqogpagODq4ZU3OC+Vlc M54Pa+Q7sP6nZbY6i/mx1PtlXm9dKqq6DdON/WqJCCY5FkaXkfGFv29/cDw18fYwrP 2UC2g3qRqukIg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: ruanjinjie , Michael Ellerman , Sasha Levin , gregkh@linuxfoundation.org, sfr@canb.auug.org.au, idryomov@gmail.com, ira.weiny@intel.com, robh@kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [PATCH AUTOSEL 4.19 6/6] powerpc/pseries: fix possible memory leak in ibmebus_bus_init() Date: Fri, 8 Sep 2023 20:24:22 -0400 Message-Id: <20230909002424.3578867-6-sashal@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230909002424.3578867-1-sashal@kernel.org> References: <20230909002424.3578867-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 4.19.294 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: ruanjinjie [ Upstream commit afda85b963c12947e298ad85d757e333aa40fd74 ] If device_register() returns error in ibmebus_bus_init(), name of kobject which is allocated in dev_set_name() called in device_add() is leaked. As comment of device_add() says, it should call put_device() to drop the reference count that was set in device_initialize() when it fails, so the name can be freed in kobject_cleanup(). Signed-off-by: ruanjinjie Signed-off-by: Michael Ellerman Link: https://msgid.link/20221110011929.3709774-1-ruanjinjie@huawei.com Signed-off-by: Sasha Levin --- arch/powerpc/platforms/pseries/ibmebus.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c index c7c1140c13b6c..3fce7508a4fc6 100644 --- a/arch/powerpc/platforms/pseries/ibmebus.c +++ b/arch/powerpc/platforms/pseries/ibmebus.c @@ -452,6 +452,7 @@ static int __init ibmebus_bus_init(void) if (err) { printk(KERN_WARNING "%s: device_register returned %i\n", __func__, err); + put_device(&ibmebus_bus_device); bus_unregister(&ibmebus_bus_type); return err; -- 2.40.1