From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Fri, 18 May 2012 23:22:38 +0000 (-0300)
Subject: Bluetooth: Do not purge queue in Basic Mode
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ee556f662ca9e96a3cdb0d10745f9fd0cbf549af;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

Bluetooth: Do not purge queue in Basic Mode

chan->tx_q is only initialized if we use ERTM or Streaming mode.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index b70dca4472a7..ae69da8d01e7 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -549,9 +549,11 @@ static void l2cap_chan_del(struct l2cap_chan *chan, int err)
 	if (test_bit(CONF_NOT_COMPLETE, &chan->conf_state))
 		return;
 
-	skb_queue_purge(&chan->tx_q);
+	switch(chan->mode) {
+	case L2CAP_MODE_BASIC:
+		break;
 
-	if (chan->mode == L2CAP_MODE_ERTM) {
+	case L2CAP_MODE_ERTM:
 		__clear_retrans_timer(chan);
 		__clear_monitor_timer(chan);
 		__clear_ack_timer(chan);
@@ -560,7 +562,15 @@ static void l2cap_chan_del(struct l2cap_chan *chan, int err)
 
 		l2cap_seq_list_free(&chan->srej_list);
 		l2cap_seq_list_free(&chan->retrans_list);
+
+		/* fall through */
+
+	case L2CAP_MODE_STREAMING:
+		skb_queue_purge(&chan->tx_q);
+		break;
 	}
+
+	return;
 }
 
 static void l2cap_chan_cleanup_listen(struct sock *parent)