2 files changed, 8 insertions, 2 deletions

diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 244e8ff11977..7aca22c9976d 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -2326,6 +2326,12 @@ static struct uart_driver serial8250_reg = {
         .cons                   = SERIAL8250_CONSOLE,
 };
 
+/*
+ * early_serial_setup - early registration for 8250 ports
+ *
+ * Setup an 8250 port structure prior to console initialisation.  Use
+ * after console initialisation will cause undefined behaviour.
+ */
 int __init early_serial_setup(struct uart_port *port)
 {
         if (port->line >= ARRAY_SIZE(serial8250_ports))
diff --git a/include/linux/serial_reg.h b/include/linux/serial_reg.h
index 6a2bb955844b..3c8a6aa77415 100644
--- a/include/linux/serial_reg.h
+++ b/include/linux/serial_reg.h
@@ -247,10 +247,10 @@
 #define UART_CTR        0xFF
 
 /*
- * The 16C950 Additional Control Reigster
+ * The 16C950 Additional Control Register
  */
 #define UART_ACR_RXDIS  0x01    /* Receiver disable */
-#define UART_ACR_TXDIS  0x02    /* Receiver disable */
+#define UART_ACR_TXDIS  0x02    /* Transmitter disable */
 #define UART_ACR_DSRFC  0x04    /* DSR Flow Control */
 #define UART_ACR_TLENB  0x20    /* 950 trigger levels enable */
 #define UART_ACR_ICRRD  0x40    /* ICR Read enable */