diff --git a/drivers/usb/serial/navman.c b/drivers/usb/serial/navman.c
index 29ab6eb5b536..31de00aeb24e 100644
--- a/drivers/usb/serial/navman.c
+++ b/drivers/usb/serial/navman.c
@@ -84,8 +84,6 @@ static int navman_open(struct tty_struct *tty, struct usb_serial_port *port)
 {
 	int result = 0;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	if (port->interrupt_in_urb) {
 		dbg("%s - adding interrupt input for treo", __func__);
 		result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
@@ -99,16 +97,12 @@ static int navman_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 static void navman_close(struct usb_serial_port *port)
 {
-	dbg("%s - port %d", __func__, port->number);
-
 	usb_kill_urb(port->interrupt_in_urb);
 }
 
 static int navman_write(struct tty_struct *tty, struct usb_serial_port *port,
 			const unsigned char *buf, int count)
 {
-	dbg("%s - port %d", __func__, port->number);
-
 	/*
 	 * This device can't write any data, only read from the device
 	 */