From bb3529c6a01fce3e23c968982f46fa46a0095345 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Thu, 21 Mar 2013 12:36:35 +0100
Subject: [PATCH] USB: mos7840: remove bogus disconnect test in close
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 | 28 ++++++----------------------
1 file changed, 6 insertions(+), 22 deletions(-)
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 316ad5f0d1a2..979ef1999581 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -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;
--
2.34.1