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ieee802154: fix error handling in ieee802154fake_probe()
In case of any failure ieee802154fake_probe() just calls unregister_netdev(). But it does not look safe to unregister netdevice before it was registered. The patch implements straightforward resource deallocation in case of failure in ieee802154fake_probe(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
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parent
f1227c5c1b
commit
8c2dd54485
1 changed files with 8 additions and 5 deletions
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@ -377,17 +377,20 @@ static int ieee802154fake_probe(struct platform_device *pdev)
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err = wpan_phy_register(phy);
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if (err)
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goto out;
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goto err_phy_reg;
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err = register_netdev(dev);
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if (err < 0)
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goto out;
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if (err)
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goto err_netdev_reg;
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dev_info(&pdev->dev, "Added ieee802154 HardMAC hardware\n");
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return 0;
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out:
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unregister_netdev(dev);
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err_netdev_reg:
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wpan_phy_unregister(phy);
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err_phy_reg:
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free_netdev(dev);
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wpan_phy_free(phy);
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return err;
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}
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