diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 0179d348c2608..c8542356898b4 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -2581,7 +2581,6 @@ static int mos7840_startup(struct usb_serial *serial)
 static void mos7840_disconnect(struct usb_serial *serial)
 {
 	int i;
-	unsigned long flags;
 	struct moschip_port *mos7840_port;
 	dbg("%s", " disconnect :entering..........");