From: Miaoqian Lin <linmq006@gmail.com>
To: Hauke Mehrtens <hauke@hauke-m.de>, Andrew Lunn <andrew@lunn.ch>,
Vivien Didelot <vivien.didelot@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Vladimir Oltean <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: linmq006@gmail.com
Subject: [PATCH] net: dsa: lantiq_gswip: Fix refcount leak in gswip_gphy_fw_list
Date: Sun, 5 Jun 2022 11:23:34 +0400 [thread overview]
Message-ID: <20220605072335.11257-1-linmq006@gmail.com> (raw)
Every iteration of for_each_available_child_of_node() decrements
the reference count of the previous node.
when breaking early from a for_each_available_child_of_node() loop,
we need to explicitly call of_node_put() on the gphy_fw_np.
Add missing of_node_put() to avoid refcount leak.
Fixes: 14fceff4771e ("net: dsa: Add Lantiq / Intel DSA driver for vrx200")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
drivers/net/dsa/lantiq_gswip.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c
index 8af4def38a98..e531b93f3cb2 100644
--- a/drivers/net/dsa/lantiq_gswip.c
+++ b/drivers/net/dsa/lantiq_gswip.c
@@ -2070,8 +2070,10 @@ static int gswip_gphy_fw_list(struct gswip_priv *priv,
for_each_available_child_of_node(gphy_fw_list_np, gphy_fw_np) {
err = gswip_gphy_fw_probe(priv, &priv->gphy_fw[i],
gphy_fw_np, i);
- if (err)
+ if (err) {
+ of_node_put(gphy_fw_np);
goto remove_gphy;
+ }
i++;
}
--
2.25.1
next reply other threads:[~2022-06-05 7:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-05 7:23 Miaoqian Lin [this message]
2022-06-08 3:50 ` [PATCH] net: dsa: lantiq_gswip: Fix refcount leak in gswip_gphy_fw_list patchwork-bot+netdevbpf
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