linux-kernel - [PATCH] net: usb: remove redundant null pointer check before of_node

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Date:   Sun, 16 Sep 2018 21:20:17 +0800
From:   zhong jiang <zhongjiang@...wei.com>
To:     <davem@...emloft.net>
CC:     <woojung.huh@...rochip.com>, <UNGLinuxDriver@...rochip.com>,
        <netdev@...r.kernel.org>, <linux-usb@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] net: usb: remove redundant null pointer check before of_node_put

of_node_put has taken the null pointer check into account. So it is
safe to remove the duplicated check before of_node_put.

Signed-off-by: zhong jiang <zhongjiang@...wei.com>
---
 drivers/net/usb/lan78xx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 3ce3c66..34ca0ee 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -1835,8 +1835,7 @@ static int lan78xx_mdio_init(struct lan78xx_net *dev)
 
 	node = of_get_child_by_name(dev->udev->dev.of_node, "mdio");
 	ret = of_mdiobus_register(dev->mdiobus, node);
-	if (node)
-		of_node_put(node);
+	of_node_put(node);
 	if (ret) {
 		netdev_err(dev->net, "can't register MDIO bus\n");
 		goto exit1;
-- 
1.7.12.4