net: hisilicon: hns_mdio: fix OF node leak in probe()

[ Upstream commit e62bedd ]

Driver is leaking OF node reference from
of_parse_phandle_with_fixed_args() in probe().

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>

Author: krzk

drivers/net/ethernet/hisilicon/hns_mdio.c

@@ -575,6 +575,7 @@ static int hns_mdio_probe(struct platform_device *pdev)
 						MDIO_SC_RESET_ST;
 				}
 			}
+			of_node_put(reg_args.np);
 		} else {
 			dev_warn(&pdev->dev, "find syscon ret = %#x\n", ret);
 			mdio_dev->subctrl_vbase = NULL;