From: Johan Hedberg <johan.hedberg@xxxxxxxxx> The HCI_CONN_AUTH_PEND flag should be set whenever requesting authentication so that multiple pending requests can't occur. Signed-off-by: Johan Hedberg <johan.hedberg@xxxxxxxxx> --- net/bluetooth/hci_event.c | 22 ++++++++++++++++++---- 1 files changed, 18 insertions(+), 4 deletions(-) diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 4f1e695..12a9bb9 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -1013,12 +1013,19 @@ static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status) hci_dev_lock(hdev); conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr); - if (conn && hci_outgoing_auth_needed(hdev, conn)) { + if (!conn) + goto unlock; + + if (!hci_outgoing_auth_needed(hdev, conn)) + goto unlock; + + if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) { struct hci_cp_auth_requested cp; - cp.handle = __cpu_to_le16(conn->handle); + cp.handle = cpu_to_le16(conn->handle); hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp); } +unlock: hci_dev_unlock(hdev); } @@ -1500,12 +1507,19 @@ static inline void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb mgmt_remote_name(hdev->id, &ev->bdaddr, ev->name); conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); - if (conn && hci_outgoing_auth_needed(hdev, conn)) { + if (!conn) + goto unlock; + + if (!hci_outgoing_auth_needed(hdev, conn)) + goto unlock; + + if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) { struct hci_cp_auth_requested cp; - cp.handle = __cpu_to_le16(conn->handle); + cp.handle = cpu_to_le16(conn->handle); hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp); } +unlock: hci_dev_unlock(hdev); } -- 1.7.4.4 -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html