From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965040AbbLOKI4 (ORCPT ); Tue, 15 Dec 2015 05:08:56 -0500 Received: from devils.ext.ti.com ([198.47.26.153]:40235 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964962AbbLOKEg (ORCPT ); Tue, 15 Dec 2015 05:04:36 -0500 From: Kishon Vijay Abraham I To: CC: , Subject: [PATCH 6/9] phy: miphy28lp: add missing of_node_put Date: Tue, 15 Dec 2015 15:34:21 +0530 Message-ID: <1450173864-12708-7-git-send-email-kishon@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1450173864-12708-1-git-send-email-kishon@ti.com> References: <1450173864-12708-1-git-send-email-kishon@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Julia Lawall for_each_child_of_node performs an of_node_get on each iteration, so a return from the middle of the loop requires an of_node_put. A simplified version of the semantic patch that finds this problem is as follows (http://coccinelle.lip6.fr): // @@ expression root,e; local idexpression child; @@ for_each_child_of_node(root, child) { ... when != of_node_put(child) when != e = child ( return child; | * return ...; ) ... } // Signed-off-by: Julia Lawall Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-miphy28lp.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/drivers/phy/phy-miphy28lp.c b/drivers/phy/phy-miphy28lp.c index c47b56b..3acd2a1 100644 --- a/drivers/phy/phy-miphy28lp.c +++ b/drivers/phy/phy-miphy28lp.c @@ -1226,15 +1226,18 @@ static int miphy28lp_probe(struct platform_device *pdev) miphy_phy = devm_kzalloc(&pdev->dev, sizeof(*miphy_phy), GFP_KERNEL); - if (!miphy_phy) - return -ENOMEM; + if (!miphy_phy) { + ret = -ENOMEM; + goto put_child; + } miphy_dev->phys[port] = miphy_phy; phy = devm_phy_create(&pdev->dev, child, &miphy28lp_ops); if (IS_ERR(phy)) { dev_err(&pdev->dev, "failed to create PHY\n"); - return PTR_ERR(phy); + ret = PTR_ERR(phy); + goto put_child; } miphy_dev->phys[port]->phy = phy; @@ -1242,11 +1245,11 @@ static int miphy28lp_probe(struct platform_device *pdev) ret = miphy28lp_of_probe(child, miphy_phy); if (ret) - return ret; + goto put_child; ret = miphy28lp_probe_resets(child, miphy_dev->phys[port]); if (ret) - return ret; + goto put_child; phy_set_drvdata(phy, miphy_dev->phys[port]); port++; @@ -1255,6 +1258,9 @@ static int miphy28lp_probe(struct platform_device *pdev) provider = devm_of_phy_provider_register(&pdev->dev, miphy28lp_xlate); return PTR_ERR_OR_ZERO(provider); +put_child: + of_node_put(child); + return ret; } static const struct of_device_id miphy28lp_of_match[] = { -- 1.7.9.5