linux-kernel - [PATCH -next] tsnep: Add missing of_node_put() in tsnep_mdio

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Date:   Wed, 24 Nov 2021 16:40:48 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>
CC:     <gerhard@...leder-embedded.com>, <kuba@...nel.org>,
        <davem@...emloft.net>
Subject: [PATCH -next] tsnep: Add missing of_node_put() in tsnep_mdio_init()

The node pointer is returned by of_get_child_by_name() with
refcount incremented in tsnep_mdio_init(). Calling of_node_put()
to aovid the refcount leak in tsnep_mdio_init().

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 drivers/net/ethernet/engleder/tsnep_main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/engleder/tsnep_main.c b/drivers/net/ethernet/engleder/tsnep_main.c
index 8333313dd706..d7d436d6aed2 100644
--- a/drivers/net/ethernet/engleder/tsnep_main.c
+++ b/drivers/net/ethernet/engleder/tsnep_main.c
@@ -1089,9 +1089,10 @@ static int tsnep_mdio_init(struct tsnep_adapter *adapter)
 	adapter->mdiobus->phy_mask = 0x0000001;
 
 	retval = of_mdiobus_register(adapter->mdiobus, np);
+
+out:
 	if (np)
 		of_node_put(np);
-out:
 
 	return retval;
 }
-- 
2.25.1