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net: ethernet: arc: Fix a potential memory leak if an optional regulator is deferred
If the optional regulator is deferred, we must release some resources.
They will be re-allocated when the probe function will be called again.
Fixes: 6eacf31139
("ethernet: arc: Add support for Rockchip SoC layer device tree bindings")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -169,8 +169,10 @@ static int emac_rockchip_probe(struct platform_device *pdev)
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/* Optional regulator for PHY */
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/* Optional regulator for PHY */
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priv->regulator = devm_regulator_get_optional(dev, "phy");
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priv->regulator = devm_regulator_get_optional(dev, "phy");
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if (IS_ERR(priv->regulator)) {
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if (IS_ERR(priv->regulator)) {
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if (PTR_ERR(priv->regulator) == -EPROBE_DEFER)
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if (PTR_ERR(priv->regulator) == -EPROBE_DEFER) {
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return -EPROBE_DEFER;
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err = -EPROBE_DEFER;
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goto out_clk_disable;
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}
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dev_err(dev, "no regulator found\n");
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dev_err(dev, "no regulator found\n");
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priv->regulator = NULL;
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priv->regulator = NULL;
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}
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}
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