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Subject[PATCH] net: ethernet: arc: Fix a potential memory leak if an optional regulator is deferred
Date
If the optional regulator is deferrred, we must release some resources.
They will be re-allocated when the probe function will be called again.

Fixes: 6eacf31139bf ("ethernet: arc: Add support for Rockchip SoC layer device tree bindings")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
drivers/net/ethernet/arc/emac_rockchip.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/arc/emac_rockchip.c b/drivers/net/ethernet/arc/emac_rockchip.c
index 16f9bee992fe..8ee9dfd0e363 100644
--- a/drivers/net/ethernet/arc/emac_rockchip.c
+++ b/drivers/net/ethernet/arc/emac_rockchip.c
@@ -169,8 +169,10 @@ static int emac_rockchip_probe(struct platform_device *pdev)
/* Optional regulator for PHY */
priv->regulator = devm_regulator_get_optional(dev, "phy");
if (IS_ERR(priv->regulator)) {
- if (PTR_ERR(priv->regulator) == -EPROBE_DEFER)
- return -EPROBE_DEFER;
+ if (PTR_ERR(priv->regulator) == -EPROBE_DEFER) {
+ ret = -EPROBE_DEFER;
+ goto out_clk_disable;
+ }
dev_err(dev, "no regulator found\n");
priv->regulator = NULL;
}
--
2.14.1
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