From: Dinghao Liu <dinghao.liu@zju.edu.cn>
Date: Mon, 24 Aug 2020 13:44:42 +0800
Subject: net: hns: Fix memleak in hns_nic_dev_probe
Git-commit: 100e3345c6e719d2291e1efd5de311cc24bb9c0b
Patch-mainline: 5.9-rc4
References: networking-stable-20_09_11

hns_nic_dev_probe allocates ndev, but not free it on
two error handling paths, which may lead to memleak.

Fixes: 63434888aaf1b ("net: hns: net: hns: enet adds support of acpi")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 drivers/net/ethernet/hisilicon/hns/hns_enet.c |    9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -2296,8 +2296,10 @@ static int hns_nic_dev_probe(struct plat
 			priv->enet_ver = AE_VERSION_1;
 		else if (acpi_dev_found(hns_enet_acpi_match[1].id))
 			priv->enet_ver = AE_VERSION_2;
-		else
-			return -ENXIO;
+		else {
+			ret = -ENXIO;
+			goto out_read_prop_fail;
+		}
 
 		/* try to find port-idx-in-ae first */
 		ret = acpi_node_get_property_reference(dev->fwnode,
@@ -2313,7 +2315,8 @@ static int hns_nic_dev_probe(struct plat
 		priv->fwnode = args.fwnode;
 	} else {
 		dev_err(dev, "cannot read cfg data from OF or acpi\n");
-		return -ENXIO;
+		ret = -ENXIO;
+		goto out_read_prop_fail;
 	}
 
 	ret = device_property_read_u32(dev, "port-idx-in-ae", &port_id);