USB: pl2303: fix return value of tiocmset
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>
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 997eba4..4dff179 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -550,10 +550,13 @@
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;