drivers/tty/n_hdlc.c: replace kmalloc/memset by kzalloc

Cc: Greg Kroah-Hartman <[e-mail]>
Signed-off-by: Fabian Frederick <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/tty/n_hdlc.c

···
 {
 	struct n_hdlc_buf *buf;
 	int i;
-	struct n_hdlc *n_hdlc = kmalloc(sizeof(*n_hdlc), GFP_KERNEL);
+	struct n_hdlc *n_hdlc = kzalloc(sizeof(*n_hdlc), GFP_KERNEL);
 
 	if (!n_hdlc)
 		return NULL;
-
-	memset(n_hdlc, 0, sizeof(*n_hdlc));
 
 	n_hdlc_buf_list_init(&n_hdlc->rx_free_buf_list);
 	n_hdlc_buf_list_init(&n_hdlc->tx_free_buf_list);