diff --git a/[refs] b/[refs]
index 7592a725a114..f324f6774907 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f7d7aedfcd4e20e7dfc7356d30cc22dc0b0f493e
+refs/heads/master: 6960f40a954619857e7095a6179eef896f297077
diff --git a/trunk/drivers/usb/serial/kobil_sct.c b/trunk/drivers/usb/serial/kobil_sct.c
index bd5bd8589e04..b382d9a0274d 100644
--- a/trunk/drivers/usb/serial/kobil_sct.c
+++ b/trunk/drivers/usb/serial/kobil_sct.c
@@ -372,7 +372,7 @@ static void kobil_read_int_callback(struct urb *urb)
 	}
 
 	tty = tty_port_tty_get(&port->port);
-	if (urb->actual_length) {
+	if (tty && urb->actual_length) {
 
 		/* BEGIN DEBUG */
 		/*