From patchwork Tue Apr 5 07:25:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 557000 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 4875BC352A8 for ; Tue, 5 Apr 2022 11:21:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1359551AbiDELT7 (ORCPT ); Tue, 5 Apr 2022 07:19:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39808 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349132AbiDEJtM (ORCPT ); Tue, 5 Apr 2022 05:49:12 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 714C4AC044; Tue, 5 Apr 2022 02:41:11 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 0F31161675; Tue, 5 Apr 2022 09:41:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1AD2BC385A3; Tue, 5 Apr 2022 09:41:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649151670; bh=s0Xl/tDZ/nn9ljOEmMoDjIHW5BTj9WeUhGDK0Dd9ojI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fpROFFrMfgDvr6ZNya6F5LqqYvdPTDSH1nOQHwjvl9D0pBw6TmgwUEVFcVRNXL51c naPp+XOtTq/VdYhBwkPpVTOrGHc7xhS4IEQ5/v+PDDpfOB+HQazKK5mpFbtmNVfVqv 4AAO5TGg4XfrFSHicsaGYJemn+WJy0DwTWI8UhyE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Miaoqian Lin , Sebastian Reichel , Sasha Levin Subject: [PATCH 5.15 451/913] power: supply: ab8500: Fix memory leak in ab8500_fg_sysfs_init Date: Tue, 5 Apr 2022 09:25:13 +0200 Message-Id: <20220405070353.367451209@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220405070339.801210740@linuxfoundation.org> References: <20220405070339.801210740@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Miaoqian Lin [ Upstream commit 6a4760463dbc6b603690938c468839985189ce0a ] kobject_init_and_add() takes reference even when it fails. According to the doc of kobject_init_and_add()： If this function returns an error, kobject_put() must be called to properly clean up the memory associated with the object. Fix memory leak by calling kobject_put(). Fixes: 8c0984e5a753 ("power: move power supply drivers to power/supply") Signed-off-by: Miaoqian Lin Signed-off-by: Sebastian Reichel Signed-off-by: Sasha Levin --- drivers/power/supply/ab8500_fg.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/power/supply/ab8500_fg.c b/drivers/power/supply/ab8500_fg.c index 05fe9724ba50..57799a8079d4 100644 --- a/drivers/power/supply/ab8500_fg.c +++ b/drivers/power/supply/ab8500_fg.c @@ -2545,8 +2545,10 @@ static int ab8500_fg_sysfs_init(struct ab8500_fg *di) ret = kobject_init_and_add(&di->fg_kobject, &ab8500_fg_ktype, NULL, "battery"); - if (ret < 0) + if (ret < 0) { + kobject_put(&di->fg_kobject); dev_err(di->dev, "failed to create sysfs entry\n"); + } return ret; }