1 files changed, 37 insertions, 5 deletions

diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 5fe9fe3df77..c40f95c1951 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -2633,16 +2633,16 @@ error:
 }
 
 /****************************************************************************
- * mos7840_shutdown
+ * mos7840_disconnect
  *      This function is called whenever the device is removed from the usb bus.
  ****************************************************************************/
 
-static void mos7840_shutdown(struct usb_serial *serial)
+static void mos7840_disconnect(struct usb_serial *serial)
 {
         int i;
         unsigned long flags;
         struct moschip_port *mos7840_port;
-        dbg("%s", " shutdown :entering..........");
+        dbg("%s", " disconnect :entering..........");
 
         if (!serial) {
                 dbg("%s", "Invalid Handler");
@@ -2662,11 +2662,42 @@ static void mos7840_shutdown(struct usb_serial *serial)
                         mos7840_port->zombie = 1;
                         spin_unlock_irqrestore(&mos7840_port->pool_lock, flags);
                         usb_kill_urb(mos7840_port->control_urb);
+                }
+        }
+
+        dbg("%s", "Thank u :: ");
+
+}
+
+/****************************************************************************
+ * mos7840_release
+ *      This function is called when the usb_serial structure is freed.
+ ****************************************************************************/
+
+static void mos7840_release(struct usb_serial *serial)
+{
+        int i;
+        struct moschip_port *mos7840_port;
+        dbg("%s", " release :entering..........");
+
+        if (!serial) {
+                dbg("%s", "Invalid Handler");
+                return;
+        }
+
+        /* check for the ports to be closed,close the ports and disconnect */
+
+        /* free private structure allocated for serial port  *
+         * stop reads and writes on all ports                */
+
+        for (i = 0; i < serial->num_ports; ++i) {
+                mos7840_port = mos7840_get_port_private(serial->port[i]);
+                dbg("mos7840_port %d = %p", i, mos7840_port);
+                if (mos7840_port) {
                         kfree(mos7840_port->ctrl_buf);
                         kfree(mos7840_port->dr);
                         kfree(mos7840_port);
                 }
-                mos7840_set_port_private(serial->port[i], NULL);
         }
 
         dbg("%s", "Thank u :: ");
@@ -2707,7 +2738,8 @@ static struct usb_serial_driver moschip7840_4port_device = {
         .tiocmget = mos7840_tiocmget,
         .tiocmset = mos7840_tiocmset,
         .attach = mos7840_startup,
-        .shutdown = mos7840_shutdown,
+        .disconnect = mos7840_disconnect,
+        .release = mos7840_release,
         .read_bulk_callback = mos7840_bulk_in_callback,
         .read_int_callback = mos7840_interrupt_callback,
 };