Hi,
ke, 2025-08-13 kello 17:15 -0400, Luiz Augusto von Dentz kirjoitti:
> From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
>
> If the controller has no buffers left return -ENOBUFF to indicate that
> iso_cnt might be out of sync.
>
> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
> ---
> net/bluetooth/iso.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/net/bluetooth/iso.c b/net/bluetooth/iso.c
> index 5ce823ca3aaf..dff3fc4917d6 100644
> --- a/net/bluetooth/iso.c
> +++ b/net/bluetooth/iso.c
> @@ -458,6 +458,13 @@ static int iso_connect_cis(struct sock *sk)
> goto unlock;
> }
>
> + /* Check if there are available buffers for output/TX. */
> + if (iso_pi(sk)->qos.ucast.out.sdu && !hci_conn_num(hdev, CIS_LINK) &&
> + (hdev->iso_pkts && !hdev->iso_cnt)) {
Also && !hci_conn_num(hdev, BIS_LINK) so it doesn't fail if a BIS is
saturating the buffers?
Does PA_LINK have ISO packet TX/RX?
> + err = -ENOBUFS;
> + goto unlock;
> + }
> +
> /* Just bind if DEFER_SETUP has been set */
> if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) {
> hcon = hci_bind_cis(hdev, &iso_pi(sk)->dst,
--
Pauli Virtanen
