diff --git a/[refs] b/[refs]
index ffdf64ddc41c..f6e8f156ce76 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ca364d8388602b5c0d607c5452774833cc1ad667
+refs/heads/master: d2ffc740f33d432949eee7479ac49bafd9f5108a
diff --git a/trunk/arch/um/drivers/chan_kern.c b/trunk/arch/um/drivers/chan_kern.c
index c3bba73e4be6..e9a0abc6a32f 100644
--- a/trunk/arch/um/drivers/chan_kern.c
+++ b/trunk/arch/um/drivers/chan_kern.c
@@ -83,21 +83,8 @@ static const struct chan_ops not_configged_ops = {
 
 static void tty_receive_char(struct tty_struct *tty, char ch)
 {
-	if (tty == NULL)
-		return;
-
-	if (I_IXON(tty) && !I_IXOFF(tty) && !tty->raw) {
-		if (ch == STOP_CHAR(tty)) {
-			stop_tty(tty);
-			return;
-		}
-		else if (ch == START_CHAR(tty)) {
-			start_tty(tty);
-			return;
-		}
-	}
-
-	tty_insert_flip_char(tty, ch, TTY_NORMAL);
+	if (tty)
+		tty_insert_flip_char(tty, ch, TTY_NORMAL);
 }
 
 static int open_one_chan(struct chan *chan)