From: Johan Hedberg <johan.hedberg@xxxxxxxxx>
If the AES crypto context is not available we cannot generate new RPAs.
We should therefore cleanly return an error from the function
responsible for updating the random address.
Signed-off-by: Johan Hedberg <johan.hedberg@xxxxxxxxx>
---
net/bluetooth/hci_core.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 217ef83fb541..860477090d78 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3882,6 +3882,12 @@ int hci_update_random_address(struct hci_request *req, bool require_privacy,
!bacmp(&hdev->random_addr, &hdev->rpa))
return 0;
+ if (!hdev->tfm_aes) {
+ BT_ERR("%s crypto not available to generate RPA",
+ hdev->name);
+ return -EOPNOTSUPP;
+ }
+
err = smp_generate_rpa(hdev->tfm_aes, hdev->irk, &hdev->rpa);
if (err < 0) {
BT_ERR("%s failed to generate new RPA", hdev->name);
--
1.9.3
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