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USB: pl2303: fix return value of tiocmset

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Make sure we return 0 or a negative error number appropriate for
userspace on errors.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2013-03-21 12:37:44 +01:00 committed by Greg Kroah-Hartman
parent 94bcef6245
commit aff5b323b3
1 changed files with 5 additions and 2 deletions
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7
drivers/usb/serial/pl2303.c
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@ -550,10 +550,13 @@ static int pl2303_tiocmset(struct tty_struct *tty,
spin_unlock_irqrestore(&priv->lock, flags);
mutex_lock(&serial->disc_mutex);
if (!serial->disconnected)
if (!serial->disconnected) {
ret = pl2303_set_control_lines(port, control);
else
if (ret)
ret = usb_translate_errors(ret);
} else {
ret = -ENODEV;
}
mutex_unlock(&serial->disc_mutex);
return ret;