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,USER_AGENT_GIT autolearn=ham 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 F3C1FC43603 for ; Mon, 16 Dec 2019 18:04:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C769620717 for ; Mon, 16 Dec 2019 18:04:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576519483; bh=PHBl7xJvR/pmjiITQEmO7ueYAFIPDrnVsE5yaoW6tvU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=sc0O6U9kbq2Y5kY3j2Y5Efh2aP6x0sNK3O6aAQrtitbamjcKHMf9NcSkM7UZ4rlLW hEqoqKjEmV0YAZBe9x+iLb4Mtn9249G1UbQRJ0jBu6aQ3Dy2dkVSVfgb/ZjRYolt0L Jo+YPBRkUS6vKSCnueWGyi8if86zjsCU91pPyeaQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729704AbfLPSEm (ORCPT ); Mon, 16 Dec 2019 13:04:42 -0500 Received: from mail.kernel.org ([198.145.29.99]:42112 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729694AbfLPSEk (ORCPT ); Mon, 16 Dec 2019 13:04:40 -0500 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 BB3AC20700; Mon, 16 Dec 2019 18:04:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576519480; bh=PHBl7xJvR/pmjiITQEmO7ueYAFIPDrnVsE5yaoW6tvU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EhDZWQp1uOwzSKOLuEtpenpkEuFWsC+FFj+F50RBN3tXI0Hq2Cgc1M7IYowHDEUjm vuiS142lMcyhs4CpU28hjaUdMgl36eDhDky5JZuP/wgQYa9hnxWbm2iagpVkjTOFzZ ealkGEWD1h3Wnz5ANw8teTWDM6gpqM/9UaTLvFAU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Krzysztof Kozlowski Subject: [PATCH 4.19 082/140] pinctrl: samsung: Fix device node refcount leaks in S3C64xx wakeup controller init Date: Mon, 16 Dec 2019 18:49:10 +0100 Message-Id: <20191216174809.322177377@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20191216174747.111154704@linuxfoundation.org> References: <20191216174747.111154704@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: Krzysztof Kozlowski commit 7f028caadf6c37580d0f59c6c094ed09afc04062 upstream. In s3c64xx_eint_eint0_init() the for_each_child_of_node() loop is used with a break to find a matching child node. Although each iteration of for_each_child_of_node puts the previous node, but early exit from loop misses it. This leads to leak of device node. Cc: Fixes: 61dd72613177 ("pinctrl: Add pinctrl-s3c64xx driver") Signed-off-by: Krzysztof Kozlowski Signed-off-by: Greg Kroah-Hartman --- drivers/pinctrl/samsung/pinctrl-s3c64xx.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/drivers/pinctrl/samsung/pinctrl-s3c64xx.c +++ b/drivers/pinctrl/samsung/pinctrl-s3c64xx.c @@ -704,8 +704,10 @@ static int s3c64xx_eint_eint0_init(struc return -ENODEV; data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); - if (!data) + if (!data) { + of_node_put(eint0_np); return -ENOMEM; + } data->drvdata = d; for (i = 0; i < NUM_EINT0_IRQ; ++i) { @@ -714,6 +716,7 @@ static int s3c64xx_eint_eint0_init(struc irq = irq_of_parse_and_map(eint0_np, i); if (!irq) { dev_err(dev, "failed to get wakeup EINT IRQ %d\n", i); + of_node_put(eint0_np); return -ENXIO; } @@ -721,6 +724,7 @@ static int s3c64xx_eint_eint0_init(struc s3c64xx_eint0_handlers[i], data); } + of_node_put(eint0_np); bank = d->pin_banks; for (i = 0; i < d->nr_banks; ++i, ++bank) {