[PATCH] net: ethernet: Fix memleak in ethoc_probe

From: Dinghao Liu
Date: Wed Dec 23 2020 - 06:08:04 EST


When mdiobus_register() fails, priv->mdio allocated
by mdiobus_alloc() has not been freed, which leads
to memleak.

Signed-off-by: Dinghao Liu <dinghao.liu@xxxxxxxxxx>
---
drivers/net/ethernet/ethoc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ethoc.c b/drivers/net/ethernet/ethoc.c
index 0981fe9652e5..3d9b0b161e24 100644
--- a/drivers/net/ethernet/ethoc.c
+++ b/drivers/net/ethernet/ethoc.c
@@ -1211,7 +1211,7 @@ static int ethoc_probe(struct platform_device *pdev)
ret = mdiobus_register(priv->mdio);
if (ret) {
dev_err(&netdev->dev, "failed to register MDIO bus\n");
- goto free2;
+ goto free3;
}

ret = ethoc_mdio_probe(netdev);
@@ -1243,6 +1243,7 @@ static int ethoc_probe(struct platform_device *pdev)
netif_napi_del(&priv->napi);
error:
mdiobus_unregister(priv->mdio);
+free3:
mdiobus_free(priv->mdio);
free2:
clk_disable_unprepare(priv->clk);
--
2.17.1