ethernet: marvell: mvneta: add missing of_node_put after calling of_parse_phandle

of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/marvell/mvneta.c

@@ -4118,6 +4118,7 @@ static int mvneta_probe(struct platform_device *pdev)
 			pp->bm_priv = NULL;
 		}
 	}
+	of_node_put(bm_node);
 
 	err = mvneta_init(&pdev->dev, pp);
 	if (err < 0)