[PATCH v1] Bluetooth: btintel: Check if controller is ISO capable on btintel_classify_pkt_type

[Luiz Augusto von Dentz <luiz.dentz@gmail.com>]

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

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@intel.com>
---
 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