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=-7.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS 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 76BA6C43441 for ; Wed, 21 Nov 2018 13:31:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4077C214C4 for ; Wed, 21 Nov 2018 13:31:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="DXerm+Al" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4077C214C4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nvidia.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730796AbeKVAFi (ORCPT ); Wed, 21 Nov 2018 19:05:38 -0500 Received: from hqemgate16.nvidia.com ([216.228.121.65]:13499 "EHLO hqemgate16.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729421AbeKVAFh (ORCPT ); Wed, 21 Nov 2018 19:05:37 -0500 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqemgate16.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Wed, 21 Nov 2018 05:31:22 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Wed, 21 Nov 2018 05:31:13 -0800 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Wed, 21 Nov 2018 05:31:13 -0800 Received: from [10.21.132.148] (172.20.13.39) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Wed, 21 Nov 2018 13:31:12 +0000 Subject: Re: [PATCH] soc/tegra: add of_node_put() To: Yangtao Li , CC: , References: <20181121124912.22074-1-tiny.windzz@gmail.com> From: Jon Hunter Message-ID: Date: Wed, 21 Nov 2018 13:31:10 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: <20181121124912.22074-1-tiny.windzz@gmail.com> X-Originating-IP: [172.20.13.39] X-ClientProxiedBy: HQMAIL107.nvidia.com (172.20.187.13) To HQMAIL101.nvidia.com (172.20.187.10) Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1542807082; bh=VKtCNSsbJLExZbum/PysA4pC5T5tKljM4nq81ORk+Kg=; h=X-PGP-Universal:Subject:To:CC:References:From:Message-ID:Date: User-Agent:MIME-Version:In-Reply-To:X-Originating-IP: X-ClientProxiedBy:Content-Type:Content-Language: Content-Transfer-Encoding; b=DXerm+AlkuYmNrmc5Evv+/ijX4RB58AbEAw1inTVUwB7QuEiJW+kp2qqByzBDCfi2 9+ehB9xcASJZ3Cp20fSgRNU8BkeWCtXIlszNX5N+U9OeDA7HUitt95RDouLF4ndtc+ BVh2L9dn/ttA5Wiq85KkIWbrlMOyzZARN4ZJcZJwFNVWoEfzii2bU25q+Kps2FDsqN 5wNn47qCuLVwLzSR80zFxuuRbuEQM1nefN1E4XO7W9jjikp0DLU44hs39jv+HHVtwW dCVQE5eQT41SCPqZq6P3cLO9AtH7s7JnPClqYReBVRDpeBBzK47zPqLeSG+/66ZXez rcTgc8mUL8rTw== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 21/11/2018 12:49, Yangtao Li wrote: > of_find_node_by_path() acquires a reference to the node > returned by it and that reference needs to be dropped by its caller. > bl_idle_init() doesn't do that, so fix it. > > Signed-off-by: Yangtao Li > --- > drivers/soc/tegra/common.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/drivers/soc/tegra/common.c b/drivers/soc/tegra/common.c > index cd8f41351add..2e30604c9658 100644 > --- a/drivers/soc/tegra/common.c > +++ b/drivers/soc/tegra/common.c > @@ -23,10 +23,13 @@ static const struct of_device_id tegra_machine_match[] = { > bool soc_is_tegra(void) > { > struct device_node *root; > + bool rc; > > root = of_find_node_by_path("/"); > if (!root) > return false; > > - return of_match_node(tegra_machine_match, root) != NULL; > + rc = of_match_node(tegra_machine_match, root) != NULL; > + of_node_put(root); > + return rc; > } Thanks for the fix, however, I think it would be even simpler just to call of_machine_is_compatible() here instead. Cheers Jon -- nvpublic