From patchwork Wed Oct 21 20:41:38 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julia Lawall X-Patchwork-Id: 7460671 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id CC947BEEA4 for ; Wed, 21 Oct 2015 21:17:14 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id F2C4720844 for ; Wed, 21 Oct 2015 21:17:13 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1B55F20837 for ; Wed, 21 Oct 2015 21:17:13 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Zp0hY-0007Nr-62; Wed, 21 Oct 2015 21:13:40 +0000 Received: from mail2-relais-roc.national.inria.fr ([192.134.164.83]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Zp0hU-0007BT-DI for linux-arm-kernel@lists.infradead.org; Wed, 21 Oct 2015 21:13:37 +0000 X-IronPort-AV: E=Sophos;i="5.20,178,1444687200"; d="scan'208";a="183901643" Received: from palace.rsr.lip6.fr (HELO localhost.localdomain) ([132.227.105.202]) by mail2-relais-roc.national.inria.fr with ESMTP/TLS/AES128-SHA256; 21 Oct 2015 22:52:50 +0200 From: Julia Lawall To: Shawn Guo Subject: [PATCH 3/5] clk: imx27: add missing of_node_put Date: Wed, 21 Oct 2015 22:41:38 +0200 Message-Id: <1445460100-26727-4-git-send-email-Julia.Lawall@lip6.fr> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1445460100-26727-1-git-send-email-Julia.Lawall@lip6.fr> References: <1445460100-26727-1-git-send-email-Julia.Lawall@lip6.fr> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20151021_141336_886364_EA896E8F X-CRM114-Status: GOOD ( 12.11 ) X-Spam-Score: -6.1 (------) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Petazzoni , Andrew Lunn , Russell King - ARM Linux , Jason Cooper , kernel-janitors@vger.kernel.org, Michael Turquette , Stephen Boyd , linux-kernel@vger.kernel.org, Sascha Hauer , Bjorn Helgaas , linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP for_each_compatible_node performs an of_node_get on each iteration, so a break out of the loop requires an of_node_put. The semantic patch that fixes this problem is as follows (http://coccinelle.lip6.fr): // @@ 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 --- drivers/clk/imx/clk-imx27.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/clk/imx/clk-imx27.c b/drivers/clk/imx/clk-imx27.c index 0d7b8df..cf5cf75 100644 --- a/drivers/clk/imx/clk-imx27.c +++ b/drivers/clk/imx/clk-imx27.c @@ -261,8 +261,10 @@ static void __init mx27_clocks_init_dt(struct device_node *np) if (!of_device_is_compatible(refnp, "fsl,imx-osc26m")) continue; - if (!of_property_read_u32(refnp, "clock-frequency", &fref)) + if (!of_property_read_u32(refnp, "clock-frequency", &fref)) { + of_node_put(refnp); break; + } } ccm = of_iomap(np, 0);