amd: use pci_zalloc_consistent

Remove the now unnecessary memset too.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Don Fry <pcnet32@frontier.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/net/ethernet/amd/pcnet32.c

@@ -484,15 +484,14 @@ static void pcnet32_realloc_tx_ring(struct net_device *dev,
 
 	pcnet32_purge_tx_ring(dev);
 
-	new_tx_ring = pci_alloc_consistent(lp->pci_dev,
-					   sizeof(struct pcnet32_tx_head) *
-					   (1 << size),
-					   &new_ring_dma_addr);
+	new_tx_ring = pci_zalloc_consistent(lp->pci_dev,
+					    sizeof(struct pcnet32_tx_head) *
+					    (1 << size),
+					    &new_ring_dma_addr);
 	if (new_tx_ring == NULL) {
 		netif_err(lp, drv, dev, "Consistent memory allocation failed\n");
 		return;
 	}
-	memset(new_tx_ring, 0, sizeof(struct pcnet32_tx_head) * (1 << size));
 
 	new_dma_addr_list = kcalloc(1 << size, sizeof(dma_addr_t),
 				    GFP_ATOMIC);
@@ -551,15 +550,14 @@ static void pcnet32_realloc_rx_ring(struct net_device *dev,
 	int new, overlap;
 	unsigned int entries = 1 << size;
 
-	new_rx_ring = pci_alloc_consistent(lp->pci_dev,
-					   sizeof(struct pcnet32_rx_head) *
-					   entries,
-					   &new_ring_dma_addr);
+	new_rx_ring = pci_zalloc_consistent(lp->pci_dev,
+					    sizeof(struct pcnet32_rx_head) *
+					    entries,
+					    &new_ring_dma_addr);
 	if (new_rx_ring == NULL) {
 		netif_err(lp, drv, dev, "Consistent memory allocation failed\n");
 		return;
 	}
-	memset(new_rx_ring, 0, sizeof(struct pcnet32_rx_head) * entries);
 
 	new_dma_addr_list = kcalloc(entries, sizeof(dma_addr_t), GFP_ATOMIC);
 	if (!new_dma_addr_list)