diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c
index 5811d34..2cb30c5 100644
--- a/drivers/usb/serial/ipw.c
+++ b/drivers/usb/serial/ipw.c
@@ -227,7 +227,6 @@
 {
 	struct usb_wwan_intf_private *data = usb_get_serial_data(serial);
 
-	usb_wwan_release(serial);
 	usb_set_serial_data(serial, NULL);
 	kfree(data);
 }
@@ -309,12 +308,12 @@
 	.description =		"IPWireless converter",
 	.id_table =		id_table,
 	.num_ports =		1,
-	.disconnect =		usb_wwan_disconnect,
 	.open =			ipw_open,
 	.close =		ipw_close,
 	.probe =		ipw_probe,
 	.attach =		usb_wwan_startup,
 	.release =		ipw_release,
+	.port_remove =		usb_wwan_port_remove,
 	.dtr_rts =		ipw_dtr_rts,
 	.write =		usb_wwan_write,
 };
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index b093886..9930628 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1240,8 +1240,8 @@
 	.tiocmset          = usb_wwan_tiocmset,
 	.ioctl             = usb_wwan_ioctl,
 	.attach            = usb_wwan_startup,
-	.disconnect        = usb_wwan_disconnect,
 	.release           = option_release,
+	.port_remove	   = usb_wwan_port_remove,
 	.read_int_callback = option_instat_callback,
 #ifdef CONFIG_PM
 	.suspend           = usb_wwan_suspend,
@@ -1357,8 +1357,6 @@
 	struct usb_wwan_intf_private *intfdata = usb_get_serial_data(serial);
 	struct option_private *priv = intfdata->private;
 
-	usb_wwan_release(serial);
-
 	kfree(priv);
 	kfree(intfdata);
 }
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index 8d10301..314ae8c 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -262,8 +262,7 @@
 {
 	struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);
 
-	/* Call usb_wwan release & free the private data allocated in qcprobe */
-	usb_wwan_release(serial);
+	/* Free the private data allocated in qcprobe */
 	usb_set_serial_data(serial, NULL);
 	kfree(priv);
 }
@@ -283,8 +282,8 @@
 	.write_room	     = usb_wwan_write_room,
 	.chars_in_buffer     = usb_wwan_chars_in_buffer,
 	.attach		     = usb_wwan_startup,
-	.disconnect	     = usb_wwan_disconnect,
 	.release	     = qc_release,
+	.port_remove	     = usb_wwan_port_remove,
 #ifdef CONFIG_PM
 	.suspend	     = usb_wwan_suspend,
 	.resume		     = usb_wwan_resume,
diff --git a/drivers/usb/serial/usb-wwan.h b/drivers/usb/serial/usb-wwan.h
index c47b6ec..1f034d2 100644
--- a/drivers/usb/serial/usb-wwan.h
+++ b/drivers/usb/serial/usb-wwan.h
@@ -9,8 +9,7 @@
 extern int usb_wwan_open(struct tty_struct *tty, struct usb_serial_port *port);
 extern void usb_wwan_close(struct usb_serial_port *port);
 extern int usb_wwan_startup(struct usb_serial *serial);
-extern void usb_wwan_disconnect(struct usb_serial *serial);
-extern void usb_wwan_release(struct usb_serial *serial);
+extern int usb_wwan_port_remove(struct usb_serial_port *port);
 extern int usb_wwan_write_room(struct tty_struct *tty);
 extern void usb_wwan_set_termios(struct tty_struct *tty,
 				 struct usb_serial_port *port,
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
index f35971d..7d08113 100644
--- a/drivers/usb/serial/usb_wwan.c
+++ b/drivers/usb/serial/usb_wwan.c
@@ -565,6 +565,33 @@
 }
 EXPORT_SYMBOL(usb_wwan_startup);
 
+int usb_wwan_port_remove(struct usb_serial_port *port)
+{
+	int i;
+	struct usb_wwan_port_private *portdata;
+
+	portdata = usb_get_serial_port_data(port);
+	usb_set_serial_port_data(port, NULL);
+
+	/* Stop reading/writing urbs and free them */
+	for (i = 0; i < N_IN_URB; i++) {
+		usb_kill_urb(portdata->in_urbs[i]);
+		usb_free_urb(portdata->in_urbs[i]);
+		free_page((unsigned long)portdata->in_buffer[i]);
+	}
+	for (i = 0; i < N_OUT_URB; i++) {
+		usb_kill_urb(portdata->out_urbs[i]);
+		usb_free_urb(portdata->out_urbs[i]);
+		kfree(portdata->out_buffer[i]);
+	}
+
+	/* Now free port private data */
+	kfree(portdata);
+	return 0;
+}
+EXPORT_SYMBOL(usb_wwan_port_remove);
+
+#ifdef CONFIG_PM
 static void stop_read_write_urbs(struct usb_serial *serial)
 {
 	int i, j;
@@ -582,45 +609,6 @@
 	}
 }
 
-void usb_wwan_disconnect(struct usb_serial *serial)
-{
-	stop_read_write_urbs(serial);
-}
-EXPORT_SYMBOL(usb_wwan_disconnect);
-
-void usb_wwan_release(struct usb_serial *serial)
-{
-	int i, j;
-	struct usb_serial_port *port;
-	struct usb_wwan_port_private *portdata;
-
-	/* Now free them */
-	for (i = 0; i < serial->num_ports; ++i) {
-		port = serial->port[i];
-		portdata = usb_get_serial_port_data(port);
-
-		for (j = 0; j < N_IN_URB; j++) {
-			usb_free_urb(portdata->in_urbs[j]);
-			free_page((unsigned long)
-				  portdata->in_buffer[j]);
-			portdata->in_urbs[j] = NULL;
-		}
-		for (j = 0; j < N_OUT_URB; j++) {
-			usb_free_urb(portdata->out_urbs[j]);
-			kfree(portdata->out_buffer[j]);
-			portdata->out_urbs[j] = NULL;
-		}
-	}
-
-	/* Now free per port private data */
-	for (i = 0; i < serial->num_ports; i++) {
-		port = serial->port[i];
-		kfree(usb_get_serial_port_data(port));
-	}
-}
-EXPORT_SYMBOL(usb_wwan_release);
-
-#ifdef CONFIG_PM
 int usb_wwan_suspend(struct usb_serial *serial, pm_message_t message)
 {
 	struct usb_wwan_intf_private *intfdata = serial->private;