[PATCH] net: ethernet: nxp: Fix a possible memory leak in lpc_mii_probe()

[Jinjie Ruan]

of_phy_find_device() calls bus_find_device(), which calls get_device()
on the returned struct device * to increment the refcount. The current
implementation does not decrement the refcount, which causes memory leak.

So add the missing phy_device_free() call to decrement the
refcount via put_device() to balance the refcount.

Fixes: 3503bf024b3e ("net: lpc_eth: parse phy nodes from device tree")
Signed-off-by: Jinjie Ruan <ruanjinjie at huawei.com>
---
 drivers/net/ethernet/nxp/lpc_eth.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c
index dd3e58a1319c..8bff394991e4 100644
--- a/drivers/net/ethernet/nxp/lpc_eth.c
+++ b/drivers/net/ethernet/nxp/lpc_eth.c
@@ -768,6 +768,9 @@ static int lpc_mii_probe(struct net_device *ndev)
 		return -ENODEV;
 	}
 
+	if (pldat->phy_node)
+		phy_device_free(phydev);
+
 	phydev = phy_connect(ndev, phydev_name(phydev),
 			     &lpc_handle_link_change,
 			     lpc_phy_interface_mode(&pldat->pdev->dev));
-- 
2.34.1