[RFCv4 10/30] Bluetooth: Add state_change for A2MP channel

[Andrei Emeltchenko <Andrei.Emeltchenko.news@gmail.com>]

From: Andrei Emeltchenko <andrei.emeltchenko@intel.com>

Remove AMP Manager when A2MP channel closed.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
---
 net/bluetooth/a2mp.c |   21 +++++++++++++++++++++
 1 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 5945788..63970b5 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -16,6 +16,24 @@
 #include <net/bluetooth/l2cap.h>
 #include <net/bluetooth/a2mp.h>
 
+static void a2mp_chan_state_change_cb(void *data, int state, int err)
+{
+	struct l2cap_chan *chan = data;
+	struct amp_mgr *mgr;
+
+	BT_DBG("chan %p state %s", chan, state_to_string(state));
+
+	chan->state = state;
+
+	switch (state) {
+	case BT_CLOSED:
+		mgr = chan->data;
+		if (mgr)
+			amp_mgr_put(mgr);
+		break;
+	}
+}
+
 static void a2mp_chan_close_cb(void *data)
 {
 	struct amp_mgr *mgr = data;
@@ -26,6 +44,7 @@ static void a2mp_chan_close_cb(void *data)
 static struct l2cap_ops a2mp_chan_ops = {
 	.name		= "L2CAP A2MP channel",
 	.close		= a2mp_chan_close_cb,
+	.state_change	= a2mp_chan_state_change_cb,
 };
 
 static struct l2cap_chan *open_a2mp_chan(struct l2cap_conn *conn)
@@ -68,6 +87,8 @@ static struct l2cap_chan *open_a2mp_chan(struct l2cap_conn *conn)
 	chan->remote_mps = chan->omtu;
 	chan->mps = chan->omtu;
 
+	chan->ops->state_change(chan, BT_CONNECTED, 0);
+
 	return chan;
 }
 
-- 
1.7.9.1