From patchwork Wed Jun 5 07:38:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Yingliang X-Patchwork-Id: 801776 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 864E918C337 for ; Wed, 5 Jun 2024 07:41:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.188 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717573268; cv=none; b=HlMxTPZdRRyHai3nvYb4tuKv3F8Ku/kjd579GYvOvigkY6laXZj0ggD1YiMj6LCTCQoyVuKXbXW3qnLWDdBpWqX0sIkaOtBwjmzBLbvXPgjvASb4XSaXPhasTBKFxT5yVntFdv11gDLq7wv1AbtsmU0hK5fwdw4DO7BiUxR2b6Y= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717573268; c=relaxed/simple; bh=DHpacmr+1+C1jw2cfTs7qg1owQWJx+BzIC9c0gbL28Y=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=DIY8aT6IOWv6ABIwN6/1UrTHM9Lzk0CpSz24/oFhbYdjOwbj+jXM4Mt1bw82s06Z8xYSS7bzW2rK35qylR691VfEbOlrIuU+n+kLRxfzhYVYQ7S5df8v0A4sxNe7jsUnqQ+Y1jGXFGANe3ghlIriffhBT5WqsnWv8TEO8x9wo10= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.188 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.88.194]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4VvK9R3g34zcjMM; Wed, 5 Jun 2024 15:39:39 +0800 (CST) Received: from dggpemm500005.china.huawei.com (unknown [7.185.36.74]) by mail.maildlp.com (Postfix) with ESMTPS id 8ECEC140F52; Wed, 5 Jun 2024 15:41:03 +0800 (CST) Received: from dggpemm500007.china.huawei.com (7.185.36.183) by dggpemm500005.china.huawei.com (7.185.36.74) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Wed, 5 Jun 2024 15:41:03 +0800 Received: from huawei.com (10.175.103.91) by dggpemm500007.china.huawei.com (7.185.36.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Wed, 5 Jun 2024 15:41:02 +0800 From: Yang Yingliang To: CC: , , , , , Subject: [PATCH 3/3] pinctrl: ti: ti-iodelay: fix possible memory leak when pinctrl_enable() fails Date: Wed, 5 Jun 2024 15:38:27 +0800 Message-ID: <20240605073827.3380584-4-yangyingliang@huawei.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240605073827.3380584-1-yangyingliang@huawei.com> References: <20240605073827.3380584-1-yangyingliang@huawei.com> Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500007.china.huawei.com (7.185.36.183) This driver calls pinctrl_register_and_init() which is not devm_ managed, it will leads memory leak if pinctrl_enable() fails. Replace it with devm_pinctrl_register_and_init(). And add missing of_node_put() in the error path. Fixes: 5038a66dad01 ("pinctrl: core: delete incorrect free in pinctrl_enable()") Signed-off-by: Yang Yingliang --- drivers/pinctrl/ti/pinctrl-ti-iodelay.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c index 040f2c46a868..ef9758638501 100644 --- a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c +++ b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c @@ -876,7 +876,7 @@ static int ti_iodelay_probe(struct platform_device *pdev) iod->desc.name = dev_name(dev); iod->desc.owner = THIS_MODULE; - ret = pinctrl_register_and_init(&iod->desc, dev, iod, &iod->pctl); + ret = devm_pinctrl_register_and_init(dev, &iod->desc, iod, &iod->pctl); if (ret) { dev_err(dev, "Failed to register pinctrl\n"); goto exit_out; @@ -884,7 +884,11 @@ static int ti_iodelay_probe(struct platform_device *pdev) platform_set_drvdata(pdev, iod); - return pinctrl_enable(iod->pctl); + ret = pinctrl_enable(iod->pctl); + if (ret) + goto exit_out; + + return 0; exit_out: of_node_put(np); @@ -899,9 +903,6 @@ static void ti_iodelay_remove(struct platform_device *pdev) { struct ti_iodelay_device *iod = platform_get_drvdata(pdev); - if (iod->pctl) - pinctrl_unregister(iod->pctl); - ti_iodelay_pinconf_deinit_dev(iod); /* Expect other allocations to be freed by devm */