diff --git a/[refs] b/[refs]
index 13871faed91a..81e76b1c2fee 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 94bcef624548fd2bcf94cb7f9fcbaedbd96d5742
+refs/heads/master: aff5b323b319758257a838cdc45f494c6674447c
diff --git a/trunk/drivers/usb/serial/pl2303.c b/trunk/drivers/usb/serial/pl2303.c
index 997eba4dcbeb..4dff17902fa0 100644
--- a/trunk/drivers/usb/serial/pl2303.c
+++ b/trunk/drivers/usb/serial/pl2303.c
@@ -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;