USB serial: replace kmalloc+memset with kzalloc

Replace kmalloc+memset with kzalloc

Signed-off-by: Yan Burman <yan_952@hotmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index ca52f12..863966c 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -85,10 +85,9 @@
 	int i;
 
 	for (i = 0; i < serial->num_ports; ++i) {
-		priv = kmalloc(sizeof (struct ark3116_private), GFP_KERNEL);
+		priv = kzalloc(sizeof(struct ark3116_private), GFP_KERNEL);
 		if (!priv)
 			goto cleanup;
-		memset(priv, 0x00, sizeof (struct ark3116_private));
 		spin_lock_init(&priv->lock);
 
 		usb_set_serial_port_data(serial->port[i], priv);