Adding hci_dev_lock since hci_conn_params_(lookup|add) require this
lock.
Suggested-by: Miao-chen Chou <mcchou@xxxxxxxxxxxx>
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@xxxxxxxxxxxx>
---
net/bluetooth/mgmt.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 2a732cab1dc99d..5e9b9728eeac03 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3895,6 +3895,8 @@ static int get_device_flags(struct sock *sk, struct hci_dev *hdev, void *data,
bt_dev_dbg(hdev, "Get device flags %pMR (type 0x%x)\n",
&cp->addr.bdaddr, cp->addr.type);
+ hci_dev_lock(hdev);
+
if (cp->addr.type == BDADDR_BREDR) {
br_params = hci_bdaddr_list_lookup_with_flags(&hdev->whitelist,
&cp->addr.bdaddr,
@@ -3921,6 +3923,8 @@ static int get_device_flags(struct sock *sk, struct hci_dev *hdev, void *data,
status = MGMT_STATUS_SUCCESS;
done:
+ hci_dev_unlock(hdev);
+
return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_DEVICE_FLAGS, status,
&rp, sizeof(rp));
}
@@ -3959,6 +3963,8 @@ static int set_device_flags(struct sock *sk, struct hci_dev *hdev, void *data,
goto done;
}
+ hci_dev_lock(hdev);
+
if (cp->addr.type == BDADDR_BREDR) {
br_params = hci_bdaddr_list_lookup_with_flags(&hdev->whitelist,
&cp->addr.bdaddr,
@@ -3985,6 +3991,8 @@ static int set_device_flags(struct sock *sk, struct hci_dev *hdev, void *data,
}
done:
+ hci_dev_unlock(hdev);
+
if (status == MGMT_STATUS_SUCCESS)
device_flags_changed(sk, hdev, &cp->addr.bdaddr, cp->addr.type,
supported_flags, current_flags);
--
2.27.0.111.gc72c7da667-goog
