1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index c0c472ac5311..90621c3312bc 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1334,8 +1334,9 @@ static inline void
 serial8250_handle_port(struct uart_8250_port *up)
 {
         unsigned int status;
+        unsigned long flags;
 
-        spin_lock(&up->port.lock);
+        spin_lock_irqsave(&up->port.lock, flags);
 
         status = serial_inp(up, UART_LSR);
 
@@ -1347,7 +1348,7 @@ serial8250_handle_port(struct uart_8250_port *up)
         if (status & UART_LSR_THRE)
                 transmit_chars(up);
 
-        spin_unlock(&up->port.lock);
+        spin_unlock_irqrestore(&up->port.lock, flags);
 }
 
 /*