net: qcom/emac: Add missing of_node_put()

Add missing of_node_put() call for device node returned by
of_parse_phandle().

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/qualcomm/emac/emac-sgmii.c

@@ -384,6 +384,7 @@ int emac_sgmii_config(struct platform_device *pdev, struct emac_adapter *adpt)
 		}
 
 		sgmii_pdev = of_find_device_by_node(np);
+		of_node_put(np);
 		if (!sgmii_pdev) {
 			dev_err(&pdev->dev, "invalid internal-phy property\n");
 			return -ENODEV;