This fixes the following warning when build with make C=1:
net/bluetooth/hci_event.c:337:15: warning: restricted __le16 degrades to integer
Fixes: a93661203641e ("Bluetooth: Process result of HCI Delete Stored Link Key command")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
                                        struct sk_buff *skb)
 {
        struct hci_rp_delete_stored_link_key *rp = data;
+       u16 num_keys;
 
        bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
 
        if (rp->status)
                return rp->status;
 
-       if (rp->num_keys <= hdev->stored_num_keys)
-               hdev->stored_num_keys -= le16_to_cpu(rp->num_keys);
+       num_keys = le16_to_cpu(rp->num_keys);
+
+       if (num_keys <= hdev->stored_num_keys)
+               hdev->stored_num_keys -= num_keys;
        else
                hdev->stored_num_keys = 0;