From: Wen Yang <wenyang@linux.alibaba.com>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>,
Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>,
davem@davemloft.net
Cc: xlpang@linux.alibaba.com, zhiche.yy@alibaba-inc.com,
Wen Yang <wenyang@linux.alibaba.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] net: mscc: ocelot: add missing of_node_put after calling of_get_child_by_name
Date: Sun, 29 Sep 2019 14:54:24 +0800 [thread overview]
Message-ID: <20190929065424.2437-1-wenyang@linux.alibaba.com> (raw)
of_node_put needs to be called when the device node which is got
from of_get_child_by_name finished using.
In both cases of success and failure, we need to release 'ports',
so clean up the code using goto.
fixes: a556c76adc05 ("net: mscc: Add initial Ocelot switch support")
Signed-off-by: Wen Yang <wenyang@linux.alibaba.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
drivers/net/ethernet/mscc/ocelot_board.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/mscc/ocelot_board.c b/drivers/net/ethernet/mscc/ocelot_board.c
index b063eb7..aac1151 100644
--- a/drivers/net/ethernet/mscc/ocelot_board.c
+++ b/drivers/net/ethernet/mscc/ocelot_board.c
@@ -388,13 +388,14 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
continue;
phy = of_phy_find_device(phy_node);
+ of_node_put(phy_node);
if (!phy)
continue;
err = ocelot_probe_port(ocelot, port, regs, phy);
if (err) {
of_node_put(portnp);
- return err;
+ goto out_put_ports;
}
phy_mode = of_get_phy_mode(portnp);
@@ -422,7 +423,8 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
"invalid phy mode for port%d, (Q)SGMII only\n",
port);
of_node_put(portnp);
- return -EINVAL;
+ err = -EINVAL;
+ goto out_put_ports;
}
serdes = devm_of_phy_get(ocelot->dev, portnp, NULL);
@@ -435,7 +437,8 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
"missing SerDes phys for port%d\n",
port);
- goto err_probe_ports;
+ of_node_put(portnp);
+ goto out_put_ports;
}
ocelot->ports[port]->serdes = serdes;
@@ -447,9 +450,8 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "Ocelot switch probed\n");
- return 0;
-
-err_probe_ports:
+out_put_ports:
+ of_node_put(ports);
return err;
}
--
1.8.3.1
next reply other threads:[~2019-09-29 6:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-29 6:54 Wen Yang [this message]
2019-10-01 17:02 ` [PATCH] net: mscc: ocelot: add missing of_node_put after calling of_get_child_by_name David Miller
2019-10-17 5:40 ` Wen Yang
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