net: bcmgenet: use kcalloc instead of kzalloc

There were two places that used kzalloc() with a multiplied sizeof(),
replace these with kcalloc as recommended by checkpatch.pl.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index 6ebc1b9..28c8111 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -1631,8 +1631,8 @@
 	priv->rx_bd_assign_index = 0;
 	priv->rx_c_index = 0;
 	priv->rx_read_ptr = 0;
-	priv->rx_cbs = kzalloc(priv->num_rx_bds * sizeof(struct enet_cb),
-				GFP_KERNEL);
+	priv->rx_cbs = kcalloc(priv->num_rx_bds, sizeof(struct enet_cb),
+			       GFP_KERNEL);
 	if (!priv->rx_cbs)
 		return -ENOMEM;
 
@@ -1773,7 +1773,7 @@
 	/* Initialize commont TX ring structures */
 	priv->tx_bds = priv->base + priv->hw_params->tdma_offset;
 	priv->num_tx_bds = TOTAL_DESC;
-	priv->tx_cbs = kzalloc(priv->num_tx_bds * sizeof(struct enet_cb),
+	priv->tx_cbs = kcalloc(priv->num_tx_bds, sizeof(struct enet_cb),
 			       GFP_KERNEL);
 	if (!priv->tx_cbs) {
 		bcmgenet_fini_dma(priv);