From: Oliver Neukum Date: Sat, 13 Jan 2007 06:32:27 +0000 (+0100) Subject: USB: race fixes for usb-serial, step 3 X-Git-Tag: v2.6.21-rc2~42^2~9^2~20 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3ff4fd94c86259e44d58946af34231a1586b5d93;p=platform%2Fupstream%2Fkernel-adaptation-pc.git USB: race fixes for usb-serial, step 3 - fix an error code returned if a device has been disconnected Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman --- 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; }