From patchwork Mon Jan 24 18:43:42 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 536350 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 C4C00C433FE for ; Mon, 24 Jan 2022 19:03:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345204AbiAXTDD (ORCPT ); Mon, 24 Jan 2022 14:03:03 -0500 Received: from ams.source.kernel.org ([145.40.68.75]:57774 "EHLO ams.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345676AbiAXTAy (ORCPT ); Mon, 24 Jan 2022 14:00:54 -0500 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 ams.source.kernel.org (Postfix) with ESMTPS id D5A08B81238; Mon, 24 Jan 2022 19:00:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E114FC340E7; Mon, 24 Jan 2022 19:00:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1643050851; bh=sGOvretFgauqF2/LGbvj1iZr7JxVo+3umuYUrti16Ho=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=h5khCtPti/6XMR/3WB6H+1EB5CMpD8XkH7Pn0WJGQGj5mNGEawyjAJMj3HC6SIDpQ h0j35m6NP6UK3q3EwfomJ9vSyPSgU+mL+IXMYNX5s1S7b+PfYCFzpyIZshNgwoVtN5 yqI/O2UWvMBJFLa7kN1tP0nd4x2kCB8+vC8QrpPY= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Miaoqian Lin , Helge Deller Subject: [PATCH 4.9 132/157] parisc: pdc_stable: Fix memory leak in pdcs_register_pathentries Date: Mon, 24 Jan 2022 19:43:42 +0100 Message-Id: <20220124183936.967542931@linuxfoundation.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220124183932.787526760@linuxfoundation.org> References: <20220124183932.787526760@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 commit d24846a4246b6e61ecbd036880a4adf61681d241 upstream. 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: 73f368cf679b ("Kobject: change drivers/parisc/pdc_stable.c to use kobject_init_and_add") Signed-off-by: Miaoqian Lin Signed-off-by: Helge Deller Signed-off-by: Greg Kroah-Hartman --- drivers/parisc/pdc_stable.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/drivers/parisc/pdc_stable.c +++ b/drivers/parisc/pdc_stable.c @@ -992,8 +992,10 @@ pdcs_register_pathentries(void) entry->kobj.kset = paths_kset; err = kobject_init_and_add(&entry->kobj, &ktype_pdcspath, NULL, "%s", entry->name); - if (err) + if (err) { + kobject_put(&entry->kobj); return err; + } /* kobject is now registered */ write_lock(&entry->rw_lock);