1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 42d2e108b679..9884bc9eecb1 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -573,6 +573,8 @@ static void uart_flush_buffer(struct tty_struct *tty)
 
         spin_lock_irqsave(&port->lock, flags);
         uart_circ_clear(&state->info->xmit);
+        if (port->ops->flush_buffer)
+                port->ops->flush_buffer(port);
         spin_unlock_irqrestore(&port->lock, flags);
         tty_wakeup(tty);
 }