1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 443468e9d66e..2a982e62963b 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -1071,6 +1071,8 @@ int usb_serial_probe(struct usb_interface *interface,
                 dev_set_name(&port->dev, "ttyUSB%d", port->number);
                 dbg ("%s - registering %s", __func__, dev_name(&port->dev));
                 port->dev_state = PORT_REGISTERING;
+                device_enable_async_suspend(&port->dev);
+
                 retval = device_add(&port->dev);
                 if (retval) {
                         dev_err(&port->dev, "Error registering port device, "