From 577cfaeb864874011386a05ab4f5580a6a2aeb11 Mon Sep 17 00:00:00 2001 From: Mat Martineau Date: Mon, 14 May 2012 11:24:33 -0700 Subject: [PATCH] Bluetooth: Update tx_send_head when sending ERTM data Commit 94122bbe9c8c4ad7ba9f02f9a30bfc95672c404e introduced a problem where tx_send_head was not set to point to the first skb in the ERTM transmit queue, which stalled data transmission. This change sets that pointer when transmission is not already in progress. Reported-by: Andrei Emeltchenko Signed-off-by: Mat Martineau Signed-off-by: Gustavo Padovan --- net/bluetooth/l2cap_core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 2b30bd7..869beb3 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -2104,7 +2104,10 @@ int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len, if (err) break; + if (chan->mode == L2CAP_MODE_ERTM && chan->tx_send_head == NULL) + chan->tx_send_head = seg_queue.next; skb_queue_splice_tail_init(&seg_queue, &chan->tx_q); + if (chan->mode == L2CAP_MODE_ERTM) err = l2cap_ertm_send(chan); else -- 2.7.4