USB: mos7840: remove bogus disconnect test in close
authorJohan Hovold <jhovold@gmail.com>
Thu, 21 Mar 2013 11:36:35 +0000 (12:36 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 25 Mar 2013 20:44:18 +0000 (13:44 -0700)
Remove bogus (and unnecessary) test for serial->dev being NULL in close.

The device is never cleared, and close is never called after a completed
disconnect anyway.

Simplify urb killing, and remove some related debug and dead code while
at it.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/serial/mos7840.c

index 316ad5f0d1a252084dab7d92023fe42a45d41d9d..979ef1999581271faa65026ef63702feacd21dcb 100644 (file)
@@ -1223,25 +1223,10 @@ static void mos7840_close(struct usb_serial_port *port)
                }
        }
 
-       /* While closing port, shutdown all bulk read, write  *
-        * and interrupt read if they exists                  */
-       if (serial->dev) {
-               if (mos7840_port->write_urb) {
-                       dev_dbg(&port->dev, "%s", "Shutdown bulk write\n");
-                       usb_kill_urb(mos7840_port->write_urb);
-               }
-               if (mos7840_port->read_urb) {
-                       dev_dbg(&port->dev, "%s", "Shutdown bulk read\n");
-                       usb_kill_urb(mos7840_port->read_urb);
-                       mos7840_port->read_urb_busy = false;
-               }
-               if ((&mos7840_port->control_urb)) {
-                       dev_dbg(&port->dev, "%s", "Shutdown control read\n");
-                       /*/      usb_kill_urb (mos7840_port->control_urb); */
-               }
-       }
-/*      if(mos7840_port->ctrl_buf != NULL) */
-/*              kfree(mos7840_port->ctrl_buf); */
+       usb_kill_urb(mos7840_port->write_urb);
+       usb_kill_urb(mos7840_port->read_urb);
+       mos7840_port->read_urb_busy = false;
+
        port0->open_ports--;
        dev_dbg(&port->dev, "%s in close%d:in port%d\n", __func__, port0->open_ports, port->number);
        if (port0->open_ports == 0) {
@@ -1330,9 +1315,8 @@ static void mos7840_break(struct tty_struct *tty, int break_state)
        if (mos7840_port == NULL)
                return;
 
-       if (serial->dev)
-               /* flush and block until tx is empty */
-               mos7840_block_until_chase_response(tty, mos7840_port);
+       /* flush and block until tx is empty */
+       mos7840_block_until_chase_response(tty, mos7840_port);
 
        if (break_state == -1)
                data = mos7840_port->shadowLCR | LCR_SET_BREAK;