From patchwork Thu Apr 14 13:10:28 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: 561868 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 73F00C433FE for ; Thu, 14 Apr 2022 13:31:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243158AbiDNNdL (ORCPT ); Thu, 14 Apr 2022 09:33:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48656 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244241AbiDNN1F (ORCPT ); Thu, 14 Apr 2022 09:27:05 -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 EF4AFA0BC5; Thu, 14 Apr 2022 06:20:06 -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 330E7612E6; Thu, 14 Apr 2022 13:20:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 41894C385A5; Thu, 14 Apr 2022 13:20:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649942405; bh=MjzH9VaNpxVoybsV/F7s83Ffo96O/wDIS1zXUyBEfHE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jqECoXRVzldkGGlbiJlWTE4HGwDvXnaAqT8DWqIzWLjkYy25KecXzC06mPaJTjm5B +FVd+iRIVlRk+Hzg6A5KSBg//a1ewNWPHdi22d5KhfSEEq89a5IOvpCV9sw064pTso E948FM2DRlzCJDvAVkHWcJoyQI2dVr2yGLHxUWKY= 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 4.19 125/338] power: supply: ab8500: Fix memory leak in ab8500_fg_sysfs_init Date: Thu, 14 Apr 2022 15:10:28 +0200 Message-Id: <20220414110842.460545819@linuxfoundation.org> X-Mailer: git-send-email 2.35.2 In-Reply-To: <20220414110838.883074566@linuxfoundation.org> References: <20220414110838.883074566@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 b0e77324b016..675f9d0e8471 100644 --- a/drivers/power/supply/ab8500_fg.c +++ b/drivers/power/supply/ab8500_fg.c @@ -2541,8 +2541,10 @@ 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; }