From 3ff4fd94c86259e44d58946af34231a1586b5d93 Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oneukum@suse.de>
Date: Sat, 13 Jan 2007 07:32:27 +0100
Subject: USB: race fixes for usb-serial, step 3

- fix an error code returned if a device has been disconnected

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/serial/usb-serial.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'drivers/usb')

diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 685fb69..6bf22a2 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -281,7 +281,7 @@ static void serial_close(struct tty_struct *tty, struct file * filp)
 static int serial_write (struct tty_struct * tty, const unsigned char *buf, int count)
 {
 	struct usb_serial_port *port = tty->driver_data;
-	int retval = -EINVAL;
+	int retval = -ENODEV;
 
 	if (!port || port->serial->dev->state == USB_STATE_NOTATTACHED)
 		goto exit;
@@ -289,6 +289,7 @@ static int serial_write (struct tty_struct * tty, const unsigned char *buf, int
 	dbg("%s - port %d, %d byte(s)", __FUNCTION__, port->number, count);
 
 	if (!port->open_count) {
+		retval = -EINVAL;
 		dbg("%s - port not opened", __FUNCTION__);
 		goto exit;
 	}
-- 
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