linux-kernel - [PATCH v1] drivers:net:dsa:Fix resource leaks in fwnode_for_each_child

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Message-Id: <20230615070512.6634-1-machel@vivo.com>
Date:   Thu, 15 Jun 2023 15:04:58 +0800
From:   Wang Ming <machel@...o.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Wang Ming <machel@...o.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     opensource.kernel@...o.com
Subject: [PATCH v1] drivers:net:dsa:Fix resource leaks in fwnode_for_each_child_node() loops 

 The fwnode_for_each_child_node loop in qca8k_setup_led_ctrl should
 have fwnode_handle_put() before return which could avoid resource leaks.
 This patch could fix this bug.

Signed-off-by: Wang Ming <machel@...o.com>
---
 drivers/net/dsa/qca/qca8k-leds.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/dsa/qca/qca8k-leds.c b/drivers/net/dsa/qca/qca8k-leds.c
index 6f02029b4..d24ee5df9 100644
--- a/drivers/net/dsa/qca/qca8k-leds.c
+++ b/drivers/net/dsa/qca/qca8k-leds.c
@@ -450,8 +450,10 @@ qca8k_setup_led_ctrl(struct qca8k_priv *priv)
                 * the correct port for LED setup.
                 */
                ret = qca8k_parse_port_leds(priv, port, qca8k_port_to_phy(port_num));
-               if (ret)
+               if (ret) {
+                       fwnode_handle_put(port);
                        return ret;
+               }
        }

        return 0;
--
2.25.1

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