linux-kernel - [PATCH v4 06/14] of_numa: Use of_get_next

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Message-ID: <1465286898-13828-7-git-send-email-thunder.leizhen@huawei.com>
Date:	Tue, 7 Jun 2016 16:08:10 +0800
From:	Zhen Lei <thunder.leizhen@...wei.com>
To:	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	Ganapatrao Kulkarni <gkulkarni@...iumnetworks.com>,
	Robert Richter <rrichter@...ium.com>,
	"David Daney" <david.daney@...ium.com>,
	Rob Herring <robh+dt@...nel.org>,
	"Frank Rowand" <frowand.list@...il.com>,
	Grant Likely <grant.likely@...aro.org>,
	devicetree <devicetree@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
CC:	Zefan Li <lizefan@...wei.com>, Xinwei Hu <huxinwei@...wei.com>,
	"Tianhong Ding" <dingtianhong@...wei.com>,
	Hanjun Guo <guohanjun@...wei.com>,
	"Kefeng Wang" <wangkefeng.wang@...wei.com>
Subject: [PATCH v4 06/14] of_numa: Use of_get_next_parent to simplify code

From: Kefeng Wang <wangkefeng.wang@...wei.com>

Use of_get_next_parent() instead of open-code.

Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
 drivers/of/of_numa.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/of/of_numa.c b/drivers/of/of_numa.c
index 3157130..ed7bd22 100644
--- a/drivers/of/of_numa.c
+++ b/drivers/of/of_numa.c
@@ -153,8 +153,6 @@ int of_node_to_nid(struct device_node *device)
 	np = of_node_get(device);

 	while (np) {
-		struct device_node *parent;
-
 		r = of_property_read_u32(np, "numa-node-id", &nid);
 		/*
 		 * -EINVAL indicates the property was not found, and
@@ -165,9 +163,7 @@ int of_node_to_nid(struct device_node *device)
 		if (r != -EINVAL)
 			break;

-		parent = of_get_parent(np);
-		of_node_put(np);
-		np = parent;
+		np = of_get_next_parent(np);
 	}
 	if (np && r)
 		pr_warn("NUMA: Invalid \"numa-node-id\" property in node %s\n",
--
2.5.0