diff options
| author | Yang Li <yang.li@amlogic.com> | 2025-07-28 17:08:44 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-09-09 18:58:03 +0200 |
| commit | 70a6e89b338bb85ad857ea011736e0ad24398e0f (patch) | |
| tree | 9ae004701176641445d2136b9803de35d4901f9a | |
| parent | e04e08c2c387812a33814e6d604d7b4766efc0ca (diff) | |
Bluetooth: hci_sync: Avoid adding default advertising on startup
[ Upstream commit de5d7d3f27ddd4046736f558a40e252ddda82013 ]
list_empty(&hdev->adv_instances) is always true during startup,
so an advertising instance is added by default.
Call trace:
dump_backtrace+0x94/0xec
show_stack+0x18/0x24
dump_stack_lvl+0x48/0x60
dump_stack+0x18/0x24
hci_setup_ext_adv_instance_sync+0x17c/0x328
hci_powered_update_adv_sync+0xb4/0x12c
hci_powered_update_sync+0x54/0x70
hci_power_on_sync+0xe4/0x278
hci_set_powered_sync+0x28/0x34
set_powered_sync+0x40/0x58
hci_cmd_sync_work+0x94/0x100
process_one_work+0x168/0x444
worker_thread+0x378/0x3f4
kthread+0x108/0x10c
ret_from_fork+0x10/0x20
Link: https://github.com/bluez/bluez/issues/1442
Signed-off-by: Yang Li <yang.li@amlogic.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | net/bluetooth/hci_sync.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c index bc2aa514b8c5..5f5137764b80 100644 --- a/net/bluetooth/hci_sync.c +++ b/net/bluetooth/hci_sync.c @@ -3354,7 +3354,7 @@ static int hci_powered_update_adv_sync(struct hci_dev *hdev) * advertising data. This also applies to the case * where BR/EDR was toggled during the AUTO_OFF phase. */ - if (hci_dev_test_flag(hdev, HCI_ADVERTISING) || + if (hci_dev_test_flag(hdev, HCI_ADVERTISING) && list_empty(&hdev->adv_instances)) { if (ext_adv_capable(hdev)) { err = hci_setup_ext_adv_instance_sync(hdev, 0x00); |