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| author | Zhengping Jiang <jiangzp@google.com> | 2023-05-25 03:11:58 +0300 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2023-06-06 03:13:14 +0300 |
| commit | 1857c19941c87eb36ad47f22a406be5dfe5eff9f (patch) | |
| tree | 805e8b268c5a8800a3e3296a5be1da2211731409 /include | |
| parent | c5d2b6fa26b5b8386a9cc902cdece3a46bef2bd2 (diff) | |
| download | linux-1857c19941c87eb36ad47f22a406be5dfe5eff9f.tar.xz | |
Bluetooth: hci_sync: add lock to protect HCI_UNREGISTER
When the HCI_UNREGISTER flag is set, no jobs should be scheduled. Fix
potential race when HCI_UNREGISTER is set after the flag is tested in
hci_cmd_sync_queue.
Fixes: 0b94f2651f56 ("Bluetooth: hci_sync: Fix queuing commands when HCI_UNREGISTER is set")
Signed-off-by: Zhengping Jiang <jiangzp@google.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/bluetooth/hci_core.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 8baf34639939..fe3893855cd2 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -515,6 +515,7 @@ struct hci_dev { struct work_struct cmd_sync_work; struct list_head cmd_sync_work_list; struct mutex cmd_sync_work_lock; + struct mutex unregister_lock; struct work_struct cmd_sync_cancel_work; struct work_struct reenable_adv_work; |