From c51ffa0b2fb23ec19b2d01597506d8c953ed1218 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Tue, 18 Feb 2014 17:14:33 +0200 Subject: [PATCH] Bluetooth: Fix hci_remove_ltk failure when no match is found There is code (in mgmt.c) that depends on the hci_remove_ltk function to fail if no match is found. This patch adds tracking of removed LTKs (there can be up to two: one for master and another for slave) in the hci_remove_ltk function and returns -ENOENT of no matches were found. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- net/bluetooth/hci_core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index fd5bb4086613..69b7145bfce2 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -2807,6 +2807,7 @@ int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr) int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type) { struct smp_ltk *k, *tmp; + int removed = 0; list_for_each_entry_safe(k, tmp, &hdev->long_term_keys, list) { if (bacmp(bdaddr, &k->bdaddr) || k->bdaddr_type != bdaddr_type) @@ -2816,9 +2817,10 @@ int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type) list_del(&k->list); kfree(k); + removed++; } - return 0; + return removed ? 0 : -ENOENT; } /* HCI command timer function */