1 files changed, 20 insertions, 14 deletions

diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c
index 015810b3785b..868d1e6852e2 100644
--- a/drivers/usb/serial/ssu100.c
+++ b/drivers/usb/serial/ssu100.c
@@ -67,13 +67,6 @@ struct ssu100_port_private {
         struct async_icount icount;
 };
 
-static void ssu100_release(struct usb_serial *serial)
-{
-        struct ssu100_port_private *priv = usb_get_serial_port_data(*serial->port);
-
-        kfree(priv);
-}
-
 static inline int ssu100_control_msg(struct usb_device *dev,
                                      u8 request, u16 data, u16 index)
 {
@@ -442,21 +435,33 @@ static int ssu100_ioctl(struct tty_struct *tty,
 
 static int ssu100_attach(struct usb_serial *serial)
 {
+        return ssu100_initdevice(serial->dev);
+}
+
+static int ssu100_port_probe(struct usb_serial_port *port)
+{
         struct ssu100_port_private *priv;
-        struct usb_serial_port *port = *serial->port;
 
         priv = kzalloc(sizeof(*priv), GFP_KERNEL);
-        if (!priv) {
-                dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
-                        sizeof(*priv));
+        if (!priv)
                 return -ENOMEM;
-        }
 
         spin_lock_init(&priv->status_lock);
         init_waitqueue_head(&priv->delta_msr_wait);
+
         usb_set_serial_port_data(port, priv);
 
-        return ssu100_initdevice(serial->dev);
+        return 0;
+}
+
+static int ssu100_port_remove(struct usb_serial_port *port)
+{
+        struct ssu100_port_private *priv;
+
+        priv = usb_get_serial_port_data(port);
+        kfree(priv);
+
+        return 0;
 }
 
 static int ssu100_tiocmget(struct tty_struct *tty)
@@ -647,7 +652,8 @@ static struct usb_serial_driver ssu100_device = {
         .open                = ssu100_open,
         .close               = ssu100_close,
         .attach              = ssu100_attach,
-        .release             = ssu100_release,
+        .port_probe          = ssu100_port_probe,
+        .port_remove         = ssu100_port_remove,
         .dtr_rts             = ssu100_dtr_rts,
         .process_read_urb    = ssu100_process_read_urb,
         .tiocmget            = ssu100_tiocmget,