From 893ededeb189aa48c308116a7acd793efae5c830 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Fri, 8 Aug 2014 09:32:49 +0300 Subject: [PATCH] Bluetooth: Fix IRK lookup when tfm_aes is not available If the AES crypto has not been initialized properly we should cleanly return from the hci_find_irk_by_rpa() function. Right now this will not happen in practice, but once (in subsequent patches) SMP init is moved to after the HCI init procedure it is possible that the pointer is NULL. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- net/bluetooth/hci_core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 860477090d78..4a1ec259099e 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -3232,6 +3232,9 @@ struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa) return irk; } + if (!hdev->tfm_aes) + return NULL; + list_for_each_entry(irk, &hdev->identity_resolving_keys, list) { if (smp_irk_matches(hdev->tfm_aes, irk->val, rpa)) { bacpy(&irk->rpa, rpa); -- 2.11.0