net: pcs: Add missing put_device call in miic_create

The reference of pdev->dev is taken by of_find_device_by_node, so
it should be released when not need anymore.

Fixes: 7dc54d3 ("net: pcs: add Renesas MII converter driver")
Signed-off-by: Xiang Yang <xiangyang3@huawei.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Author: Xiang Yang

drivers/net/pcs/pcs-rzn1-miic.c

@@ -313,15 +313,21 @@ struct phylink_pcs *miic_create(struct device *dev, struct device_node *np)
 
 	pdev = of_find_device_by_node(pcs_np);
 	of_node_put(pcs_np);
-	if (!pdev || !platform_get_drvdata(pdev))
+	if (!pdev || !platform_get_drvdata(pdev)) {
+		if (pdev)
+			put_device(&pdev->dev);
 		return ERR_PTR(-EPROBE_DEFER);
+	}
 
 	miic_port = kzalloc(sizeof(*miic_port), GFP_KERNEL);
-	if (!miic_port)
+	if (!miic_port) {
+		put_device(&pdev->dev);
 		return ERR_PTR(-ENOMEM);
+	}
 
 	miic = platform_get_drvdata(pdev);
 	device_link_add(dev, miic->dev, DL_FLAG_AUTOREMOVE_CONSUMER);
+	put_device(&pdev->dev);
 
 	miic_port->miic = miic;
 	miic_port->port = port - 1;