linux-kernel - [PATCH] net: dsa: sja1105: Add of_node

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Date:   Thu, 21 Oct 2021 05:46:06 -0400
From:   Wan Jiabing <wanjiabing@...o.com>
To:     Vladimir Oltean <olteanv@...il.com>, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org
Cc:     kael_w@...h.net, Wan Jiabing <wanjiabing@...o.com>
Subject: [PATCH] net: dsa: sja1105: Add of_node_put() before return

Fix following coccicheck warning:
./drivers/net/dsa/sja1105/sja1105_main.c:1193:1-33: WARNING: Function
for_each_available_child_of_node should have of_node_put() before return.

Early exits from for_each_available_child_of_node should decrement the
node reference counter.

Signed-off-by: Wan Jiabing <wanjiabing@...o.com>
---
 drivers/net/dsa/sja1105/sja1105_main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/dsa/sja1105/sja1105_main.c b/drivers/net/dsa/sja1105/sja1105_main.c
index 1832d4bd3440..70ece441b3b8 100644
--- a/drivers/net/dsa/sja1105/sja1105_main.c
+++ b/drivers/net/dsa/sja1105/sja1105_main.c
@@ -1233,8 +1233,10 @@ static int sja1105_parse_ports_node(struct sja1105_private *priv,
 		priv->phy_mode[index] = phy_mode;
 
 		err = sja1105_parse_rgmii_delays(priv, index, child);
-		if (err)
+		if (err) {
+			of_node_put(child);
 			return err;
+		}
 	}
 
 	return 0;
-- 
2.20.1