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Bluetooth: hci_conn: Fix not restoring ISO buffer count on disconnect

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[ Upstream commit 5638d9ea9c ]

When disconnecting an ISO link the controller may not generate
HCI_EV_NUM_COMP_PKTS for unacked packets which needs to be restored in
hci_conn_del otherwise the host would assume they are still in use and
would not be able to use all the buffers available.

Fixes: 26afbd826e ("Bluetooth: Add initial implementation of CIS connections")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Tested-by: Frédéric Danis <frederic.danis@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Luiz Augusto von Dentz 2022-10-17 15:36:23 -07:00 committed by Greg Kroah-Hartman
parent 5b4f039a2f
commit a6840e2c8b
1 changed files with 11 additions and 0 deletions
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11
net/bluetooth/hci_conn.c
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@ -1003,10 +1003,21 @@ int hci_conn_del(struct hci_conn *conn)
hdev->acl_cnt += conn->sent;
} else {
struct hci_conn *acl = conn->link;
if (acl) {
acl->link = NULL;
hci_conn_drop(acl);
}
/* Unacked ISO frames */
if (conn->type == ISO_LINK) {
if (hdev->iso_pkts)
hdev->iso_cnt += conn->sent;
else if (hdev->le_pkts)
hdev->le_cnt += conn->sent;
else
hdev->acl_cnt += conn->sent;
}
}
if (conn->amp_mgr)