From patchwork Mon Jan 24 18:42:03 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 534917 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 DD6B3C4332F for ; Tue, 25 Jan 2022 00:08:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2369422AbiAYABn (ORCPT ); Mon, 24 Jan 2022 19:01:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52060 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1848976AbiAXXY3 (ORCPT ); Mon, 24 Jan 2022 18:24:29 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6B769C07321A; Mon, 24 Jan 2022 13:29:47 -0800 (PST) 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 04D1560C44; Mon, 24 Jan 2022 21:29:47 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D292DC340E4; Mon, 24 Jan 2022 21:29:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1643059786; bh=GjXLsfRDL+vMnvwCNX4tCqIZuHwbl8YDD1glN2o18Y8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RU03oQyTTRlTzj5y40M2iHAjLO3/7Vl8786t5dDdIRcr3+uYQsc+0qDpIqfySrpEe OfXNhuyPKffp9IqS+kdXMgdbxoqlhkiUDGMoVfU7JxQC+cRpV4KblkLFVYY+5+Ryu9 OqQ6Y3lgbAKGwHvamao3aPcSPJPdF0UbFyKaWM/o= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Julia Lawall , Michael Ellerman , Sasha Levin Subject: [PATCH 5.16 0734/1039] powerpc/6xx: add missing of_node_put Date: Mon, 24 Jan 2022 19:42:03 +0100 Message-Id: <20220124184149.999778545@linuxfoundation.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220124184125.121143506@linuxfoundation.org> References: <20220124184125.121143506@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Julia Lawall [ Upstream commit f6e82647ff71d427d4148964b71f239fba9d7937 ] for_each_compatible_node performs an of_node_get on each iteration, so a break out of the loop requires an of_node_put. A simplified version of the semantic patch that fixes this problem is as follows (http://coccinelle.lip6.fr): // @@ expression e; local idexpression n; @@ @@ local idexpression n; expression e; @@ for_each_compatible_node(n,...) { ... ( of_node_put(n); | e = n | + of_node_put(n); ? break; ) ... } ... when != n // Signed-off-by: Julia Lawall Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/1448051604-25256-2-git-send-email-Julia.Lawall@lip6.fr Signed-off-by: Sasha Levin --- arch/powerpc/platforms/embedded6xx/hlwd-pic.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c index 15396333a90bd..a4b020e4b6af0 100644 --- a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c +++ b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c @@ -214,6 +214,7 @@ void hlwd_pic_probe(void) irq_set_chained_handler(cascade_virq, hlwd_pic_irq_cascade); hlwd_irq_host = host; + of_node_put(np); break; } }