This fixes the kernel oops by removing unnecessary background scan update from hci_adv_monitors_clear() which shouldn't invoke any work queue. The following test was performed. - Run "rmmod btusb" and verify that no kernel oops is triggered. Signed-off-by: Miao-chen Chou <mcchou@xxxxxxxxxxxx> Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@xxxxxxxxxxxx> Reviewed-by: Alain Michaud <alainm@xxxxxxxxxxxx> --- net/bluetooth/hci_core.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 5577cf9e2c7cd..77615161c7d72 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -3005,8 +3005,6 @@ void hci_adv_monitors_clear(struct hci_dev *hdev) hci_free_adv_monitor(monitor); idr_destroy(&hdev->adv_monitors_idr); - - hci_update_background_scan(hdev); } void hci_free_adv_monitor(struct adv_monitor *monitor) -- 2.26.2
