[PATCH net 1/2] net: macb: destroy the phylink instance on the probe error path

macb_mii_init() creates a phylink instance on both of its success paths,
but the probe unwind frees the netdev without destroying it, so a failing
macb_alloc_tieoff() or register_netdev() leaks the instance.

Destroy it at err_out_unregister_mdio, which is only reachable once
macb_mii_init() has succeeded, so bp->phylink is valid there.

Fixes: 7897b071ac3b ("net: macb: convert to phylink")
Signed-off-by: Nicolai Buchwitz <redacted>
---
 drivers/net/ethernet/cadence/macb_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 8469df0d89c3..bba7246e1dbd 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c

@@ -5980,6 +5980,7 @@ static int macb_probe(struct platform_device *pdev)
 		mdiobus_unregister(bp->mii_bus);
 		mdiobus_free(bp->mii_bus);
 	}
+	phylink_destroy(bp->phylink);
 
 err_out_phy_exit:
 	phy_exit(bp->phy);

-- 
2.53.0