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-rw-r--r--drivers/serial/serial_core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 42d2e108b67..9884bc9eecb 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);
}