drivers/net: use vzalloc()

Use vzalloc() and vzalloc_node() in net drivers

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Jon Mason <jon.mason@exar.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ixgbevf/ixgbevf_main.c b/drivers/net/ixgbevf/ixgbevf_main.c
index 5b8063c..2216a3c 100644
--- a/drivers/net/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ixgbevf/ixgbevf_main.c
@@ -2489,10 +2489,9 @@
 	int size;
 
 	size = sizeof(struct ixgbevf_tx_buffer) * tx_ring->count;
-	tx_ring->tx_buffer_info = vmalloc(size);
+	tx_ring->tx_buffer_info = vzalloc(size);
 	if (!tx_ring->tx_buffer_info)
 		goto err;
-	memset(tx_ring->tx_buffer_info, 0, size);
 
 	/* round up to nearest 4K */
 	tx_ring->size = tx_ring->count * sizeof(union ixgbe_adv_tx_desc);
@@ -2556,14 +2555,13 @@
 	int size;
 
 	size = sizeof(struct ixgbevf_rx_buffer) * rx_ring->count;
-	rx_ring->rx_buffer_info = vmalloc(size);
+	rx_ring->rx_buffer_info = vzalloc(size);
 	if (!rx_ring->rx_buffer_info) {
 		hw_dbg(&adapter->hw,
 		       "Unable to vmalloc buffer memory for "
 		       "the receive descriptor ring\n");
 		goto alloc_failed;
 	}
-	memset(rx_ring->rx_buffer_info, 0, size);
 
 	/* Round up to nearest 4K */
 	rx_ring->size = rx_ring->count * sizeof(union ixgbe_adv_rx_desc);