Merge branch 'linux-linaro-lsk' into linux-linaro-lsk-android

[firefly-linux-kernel-4.4.55.git] / net / bluetooth / mgmt.c

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 3817728878da4e8106424071bd654802a96244d0..3e574540b2c2fab568c07e768f03bca4a40fbb17 100644 (file)
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2333,8 +2333,13 @@ static int user_pairing_resp(struct sock *sk, struct hci_dev *hdev,
        }
 
        if (addr->type == BDADDR_LE_PUBLIC || addr->type == BDADDR_LE_RANDOM) {
-               /* Continue with pairing via SMP */
+               /* Continue with pairing via SMP. The hdev lock must be
+                * released as SMP may try to recquire it for crypto
+                * purposes.
+                */
+               hci_dev_unlock(hdev);
                err = smp_user_confirm_reply(conn, mgmt_op, passkey);
+               hci_dev_lock(hdev);
 
                if (!err)
                        err = cmd_complete(sk, hdev->id, mgmt_op,