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-rw-r--r--drivers/serial/serial_core.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 34c576dfad8d..9589509fc5bd 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -1440,6 +1440,7 @@ uart_block_til_ready(struct file *filp, struct uart_state *state)
* modem is ready for us.
*/
spin_lock_irq(&port->lock);
+ port->ops->enable_ms(port);
mctrl = port->ops->get_mctrl(port);
spin_unlock_irq(&port->lock);
if (mctrl & TIOCM_CAR)
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