linux-kernel - [PATCH 2/2] net: ethernet: ti: eliminated some duplicate code.

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Message-Id: <1554788881-22647-2-git-send-email-wen.yang99@zte.com.cn>
Date:   Tue, 9 Apr 2019 13:48:01 +0800
From:   Wen Yang <wen.yang99@....com.cn>
To:     linux-kernel@...r.kernel.org
Cc:     wang.yi59@....com.cn, Wen Yang <wen.yang99@....com.cn>,
        Markus Elfring <Markus.Elfring@....de>,
        Wingman Kwok <w-kwok2@...com>,
        Murali Karicheri <m-karicheri2@...com>,
        "David S. Miller" <davem@...emloft.net>,
        netdev@...r.kernel.org (open list:TI NETCP ETHERNET DRIVER)
Subject: [PATCH 2/2] net: ethernet: ti: eliminated some duplicate code.

Put the code that obtains device_node and the code that
uses it tightly together to remove duplicate resource
cleanup statements between them.

Signed-off-by: Wen Yang <wen.yang99@....com.cn>
Reported-by: Markus Elfring <Markus.Elfring@....de>
Cc: Markus Elfring <Markus.Elfring@....de>
Cc: Wingman Kwok <w-kwok2@...com> (maintainer:TI NETCP ETHERNET DRIVER)
Cc: Murali Karicheri <m-karicheri2@...com> (maintainer:TI NETCP ETHERNET DRIVER)
Cc: "David S. Miller" <davem@...emloft.net> (odd fixer:NETWORKING DRIVERS)
Cc: netdev@...r.kernel.org (open list:TI NETCP ETHERNET DRIVER)
Cc: linux-kernel@...r.kernel.org (open list)
---
 drivers/net/ethernet/ti/netcp_ethss.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/ti/netcp_ethss.c b/drivers/net/ethernet/ti/netcp_ethss.c
index 0a920c5..748116a 100644
--- a/drivers/net/ethernet/ti/netcp_ethss.c
+++ b/drivers/net/ethernet/ti/netcp_ethss.c
@@ -3651,22 +3651,18 @@ static int gbe_probe(struct netcp_device *netcp_device, struct device *dev,
 	if (ret)
 		return ret;
 
-	interfaces = of_get_child_by_name(node, "interfaces");
-	if (!interfaces)
-		dev_err(dev, "could not find interfaces\n");
-
 	ret = netcp_txpipe_init(&gbe_dev->tx_pipe, netcp_device,
 				gbe_dev->dma_chan_name, gbe_dev->tx_queue_id);
-	if (ret) {
-		of_node_put(interfaces);
+	if (ret)
 		return ret;
-	}
 
 	ret = netcp_txpipe_open(&gbe_dev->tx_pipe);
-	if (ret) {
-		of_node_put(interfaces);
+	if (ret)
 		return ret;
-	}
+
+	interfaces = of_get_child_by_name(node, "interfaces");
+	if (!interfaces)
+		dev_err(dev, "could not find interfaces\n");
 
 	/* Create network interfaces */
 	INIT_LIST_HEAD(&gbe_dev->gbe_intf_head);
-- 
2.9.5