From: Oliver Neukum <[EMAIL PROTECTED]>
- fix an error code returned if a device has been disconnected
Signed-off-by: Oliver Neukum <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
drivers/usb/serial/usb-serial.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
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;
}
--
1.4.4.4
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