1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index b1fc97d5f643..7aca22c9976d 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -2198,7 +2198,7 @@ serial8250_console_write(struct console *co, const char *s, unsigned int count)
         touch_nmi_watchdog();
 
         /*
-         *      First save the UER then disable the interrupts
+         *      First save the IER then disable the interrupts
          */
         ier = serial_in(up, UART_IER);
 
@@ -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))