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path: root/drivers/usb/serial/io_ti.c
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Diffstat (limited to 'drivers/usb/serial/io_ti.c')
-rw-r--r--drivers/usb/serial/io_ti.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 7e8bb8fffee..b68efdc38ef 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -550,6 +550,9 @@ static void chase_port(struct edgeport_port *port, unsigned long timeout,
wait_queue_t wait;
unsigned long flags;
+ if (!tty)
+ return;
+
if (!timeout)
timeout = (HZ * EDGE_CLOSING_WAIT)/100;