1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 9a2617845dfc..73172898ccb3 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -204,6 +204,11 @@ static int serial_open (struct tty_struct *tty, struct file *filp)
                 goto bailout_kref_put;
         }
 
+        if (port->serial->disconnected) {
+                retval = -ENODEV;
+                goto bailout_kref_put;
+        }
+
         if (mutex_lock_interruptible(&port->mutex)) {
                 retval = -ERESTARTSYS;
                 goto bailout_kref_put;