sky2: use pci_zalloc_consistent

Remove the now unnecessary memset too.
Signed-off-by: NJoe Perches <joe@perches.com>
Cc: Mirko Lindner <mlindner@marvell.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/net/ethernet/marvell/sky2.c

@@ -1622,11 +1622,10 @@ static int sky2_alloc_buffers(struct sky2_port *sky2)
 	if (!sky2->tx_ring)
 		goto nomem;
 
-	sky2->rx_le = pci_alloc_consistent(hw->pdev, RX_LE_BYTES,
-					   &sky2->rx_le_map);
+	sky2->rx_le = pci_zalloc_consistent(hw->pdev, RX_LE_BYTES,
+					    &sky2->rx_le_map);
 	if (!sky2->rx_le)
 		goto nomem;
-	memset(sky2->rx_le, 0, RX_LE_BYTES);
 
 	sky2->rx_ring = kcalloc(sky2->rx_pending, sizeof(struct rx_ring_info),
 				GFP_KERNEL);