--- zzzz-none-000/linux-3.10.107/drivers/tty/n_hdlc.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/tty/n_hdlc.c	2021-02-04 17:41:59.000000000 +0000
@@ -836,13 +836,11 @@
 {
 	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));
-
 	spin_lock_init(&n_hdlc->rx_free_buf_list.spinlock);
 	spin_lock_init(&n_hdlc->tx_free_buf_list.spinlock);
 	spin_lock_init(&n_hdlc->rx_buf_list.spinlock);
@@ -947,8 +945,6 @@
 	KERN_INFO "N_HDLC line discipline registered.\n";
 static char hdlc_register_fail[] __initdata =
 	KERN_ERR "error registering line discipline: %d\n";
-static char hdlc_init_fail[] __initdata =
-	KERN_INFO "N_HDLC: init failure %d\n";
 
 static int __init n_hdlc_init(void)
 {
@@ -968,8 +964,6 @@
 	else
 		printk(hdlc_register_fail, status);
 
-	if (status)
-		printk(hdlc_init_fail, status);
 	return status;
 	
 }	/* end of init_module() */