[PATCH] USB: fix ftdi_sio compiler warnings

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index aad2f4d..0b03dda 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1978,8 +1978,6 @@
 {
 	struct ftdi_private *priv = usb_get_serial_port_data(port);
 
-	int  ret, mask;
-	
 	dbg("%s cmd 0x%04x", __FUNCTION__, cmd);
 
 	/* Based on code from acm.c and others */