1 files changed, 2 insertions, 2 deletions

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index ee5e59839b02..2c48bf0b5afb 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -276,7 +276,7 @@ u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
 }
 
 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
-                      __u8 ltk[16])
+                      __u8 ltk[16], __u8 key_size)
 {
         struct hci_dev *hdev = conn->hdev;
         struct hci_cp_le_start_enc cp;
@@ -288,7 +288,7 @@ void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
         cp.handle = cpu_to_le16(conn->handle);
         cp.rand = rand;
         cp.ediv = ediv;
-        memcpy(cp.ltk, ltk, sizeof(cp.ltk));
+        memcpy(cp.ltk, ltk, key_size);
 
         hci_send_cmd(hdev, HCI_OP_LE_START_ENC, sizeof(cp), &cp);
 }