diff --git a/[refs] b/[refs]
index dcbc4eef340f..f670f3530eac 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 35b5c55fee08e6e4001ba98060a2d0b82f70b5f4
+refs/heads/master: 4a21b8cb3550f19f838f7c48345fbbf6a0e8536b
diff --git a/trunk/drivers/net/ppp_async.c b/trunk/drivers/net/ppp_async.c
index 17c116bb332c..6de8399d6dd9 100644
--- a/trunk/drivers/net/ppp_async.c
+++ b/trunk/drivers/net/ppp_async.c
@@ -356,6 +356,7 @@ ppp_asynctty_receive(struct tty_struct *tty, const unsigned char *buf,
 	if (!skb_queue_empty(&ap->rqueue))
 		tasklet_schedule(&ap->tsk);
 	ap_put(ap);
+	tty_unthrottle(tty);
 }
 
 static void
diff --git a/trunk/drivers/net/ppp_synctty.c b/trunk/drivers/net/ppp_synctty.c
index aa3d39f38e22..d2fa2db13586 100644
--- a/trunk/drivers/net/ppp_synctty.c
+++ b/trunk/drivers/net/ppp_synctty.c
@@ -397,6 +397,7 @@ ppp_sync_receive(struct tty_struct *tty, const unsigned char *buf,
 	if (!skb_queue_empty(&ap->rqueue))
 		tasklet_schedule(&ap->tsk);
 	sp_put(ap);
+	tty_unthrottle(tty);
 }
 
 static void