net: mvpp2: fix memory leak in mvpp2_rx

Release skb memory in mvpp2_rx() if mvpp2_rx_refill routine fails

Fixes: b5015854674b ("net: mvpp2: fix refilling BM pools in RX path")
Signed-off-by: Lorenzo Bianconi <[e-mail]>
Acked-by: Matteo Croce <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c

···
 		err = mvpp2_rx_refill(port, bm_pool, pp, pool);
 		if (err) {
 			netdev_err(port->dev, "failed to refill BM pools\n");
+			dev_kfree_skb_any(skb);
 			goto err_drop_frame;
 		}