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-rw-r--r--drivers/usb/serial/usb-serial.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index cbca3402d6c..92c213fa931 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -237,6 +237,8 @@ bailout_module_put:
module_put(serial->type->driver.owner);
bailout_mutex_unlock:
port->open_count = 0;
+ tty->driver_data = NULL;
+ port->tty = NULL;
mutex_unlock(&port->mutex);
bailout_kref_put:
usb_serial_put(serial);