diff mbox series

[3.16,05/10] Bluetooth: Add BT_DBG to l2cap_sock_shutdown()

Message ID 20200630153641.21004-6-d.grigorev@omprussia.ru
State New
Headers show
Series Fix possible crash on L2CAP socket shutdown | expand

Commit Message

Denis Grigorev June 30, 2020, 3:36 p.m. UTC 
From: Dean Jenkins <Dean_Jenkins@mentor.com>

Add helpful BT_DBG debug to l2cap_sock_shutdown()
and __l2cap_wait_ack() so that the code flow can
be analysed.

Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/l2cap_sock.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 6c351b43bb42..662835fe0e95 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1057,6 +1057,8 @@  static int __l2cap_wait_ack(struct sock *sk, struct l2cap_chan *chan)
 	add_wait_queue(sk_sleep(sk), &wait);
 	set_current_state(TASK_INTERRUPTIBLE);
 	do {
+		BT_DBG("Waiting for %d ACKs", chan->unacked_frames);
+
 		if (!timeo)
 			timeo = HZ/5;
 
@@ -1138,6 +1140,8 @@  static int l2cap_sock_shutdown(struct socket *sock, int how)
 	l2cap_chan_put(chan);
 	sock_put(sk);
 
+	BT_DBG("err: %d", err);
+
 	return err;
 }