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net: mscc: ocelot: add missing of_node_put after calling of_get_child_by_name 

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: a556c76adc ("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
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Wen Yang 2019-09-29 14:54:24 +08:00 committed by David S. Miller
parent 83c8c3cf45
commit d2c50b1cd9
1 changed files with 8 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/net/ethernet/mscc/ocelot_board.c
View File

@ -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;
}