From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx> Due to what seem to be a bug with variant version returned by some firmwares the code may set hdev->classify_pkt_type with btintel_classify_pkt_type when in fact the controller doesn't even support ISO channels feature but may use the handle range expected from a controllers that does causing the packets to be reclassified as ISO causing several bugs. Link: https://bugzilla.kernel.org/show_bug.cgi?id=219553 Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2100565 Link: https://github.com/StarLabsLtd/firmware/issues/180 Fixes: f25b7fd36cc3 ("Bluetooth: Add vendor-specific packet classification for ISO data") Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx> --- drivers/bluetooth/btintel.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c index 55cc1652bfe4..06575a0b9aee 100644 --- a/drivers/bluetooth/btintel.c +++ b/drivers/bluetooth/btintel.c @@ -2670,7 +2670,7 @@ static u8 btintel_classify_pkt_type(struct hci_dev *hdev, struct sk_buff *skb) * Distinguish ISO data packets form ACL data packets * based on their connection handle value range. */ - if (hci_skb_pkt_type(skb) == HCI_ACLDATA_PKT) { + if (iso_capable(hdev) && hci_skb_pkt_type(skb) == HCI_ACLDATA_PKT) { __u16 handle = __le16_to_cpu(hci_acl_hdr(skb)->handle); if (hci_handle(handle) >= BTINTEL_ISODATA_HANDLE_BASE) -- 2.50.0
