From: Yang Li <yang.li@amlogic.com>
Date: Wed, 20 Aug 2025 02:16:17 +0000 (+0800)
Subject: Bluetooth: hci_event: Disconnect device when BIG sync is lost
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=55b9551fcdf6a2fe7f3422918d5697b56794da72;p=users%2Fjedix%2Flinux-maple.git

Bluetooth: hci_event: Disconnect device when BIG sync is lost

When a BIG sync is lost, the device should be set to "disconnected".
This ensures symmetry with the ISO path setup, where the device is
marked as "connected" once the path is established. Without this
change, the device state remains inconsistent and may lead to a
memory leak.

Fixes: b2a5f2e1c127 ("Bluetooth: hci_event: Add support for handling LE BIG Sync Lost event")
Signed-off-by: Yang Li <yang.li@amlogic.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
---

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 904bcff4f4cac..7a21748518574 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -7024,6 +7024,7 @@ static void hci_le_big_sync_lost_evt(struct hci_dev *hdev, void *data,
 {
 	struct hci_evt_le_big_sync_lost *ev = data;
 	struct hci_conn *bis, *conn;
+	bool mgmt_conn;
 
 	bt_dev_dbg(hdev, "big handle 0x%2.2x", ev->handle);
 
@@ -7042,6 +7043,10 @@ static void hci_le_big_sync_lost_evt(struct hci_dev *hdev, void *data,
 	while ((bis = hci_conn_hash_lookup_big_state(hdev, ev->handle,
 						     BT_CONNECTED,
 						     HCI_ROLE_SLAVE))) {
+		mgmt_conn = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &bis->flags);
+		mgmt_device_disconnected(hdev, &bis->dst, bis->type, bis->dst_type,
+					 ev->reason, mgmt_conn);
+
 		clear_bit(HCI_CONN_BIG_SYNC, &bis->flags);
 		hci_disconn_cfm(bis, ev->reason);
 		hci_conn_del(bis);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 3166f5fb876b1..90e37ff2c85db 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -9705,7 +9705,9 @@ void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
 	if (!mgmt_connected)
 		return;
 
-	if (link_type != ACL_LINK && link_type != LE_LINK)
+	if (link_type != ACL_LINK &&
+	    link_type != LE_LINK  &&
+	    link_type != BIS_LINK)
 		return;
 
 	bacpy(&ev.addr.bdaddr, bdaddr);