3 files changed, 8 insertions, 21 deletions

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index e524bb59bff2..091cff2155e6 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -924,10 +924,9 @@ static struct hci_conn *__hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t
 	case CIS_LINK:
 	case BIS_LINK:
 	case PA_LINK:
-		if (hdev->iso_mtu)
-			/* Dedicated ISO Buffer exists */
-			break;
-		fallthrough;
+		if (!hdev->iso_mtu)
+			return ERR_PTR(-ECONNREFUSED);
+		break;
 	case LE_LINK:
 		if (hdev->le_mtu && hdev->le_mtu < HCI_MIN_LE_MTU)
 			return ERR_PTR(-ECONNREFUSED);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 55e0722fd066..e2bffad9816f 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3399,8 +3399,7 @@ static inline void hci_quote_sent(struct hci_conn *conn, int num, int *quote)
 	case CIS_LINK:
 	case BIS_LINK:
 	case PA_LINK:
-		cnt = hdev->iso_mtu ? hdev->iso_cnt :
-			hdev->le_mtu ? hdev->le_cnt : hdev->acl_cnt;
+		cnt = hdev->iso_cnt;
 		break;
 	default:
 		cnt = 0;
@@ -3759,8 +3758,7 @@ static void hci_sched_iso(struct hci_dev *hdev, __u8 type)
 	if (!hci_conn_num(hdev, type))
 		return;
 
-	cnt = hdev->iso_pkts ? &hdev->iso_cnt :
-		hdev->le_pkts ? &hdev->le_cnt : &hdev->acl_cnt;
+	cnt = &hdev->iso_cnt;
 	while (*cnt && (conn = hci_low_sent(hdev, type, &quote))) {
 		while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
 			BT_DBG("skb %p len %d", skb, skb->len);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index fe49e8a7969f..d790b0d4eb9a 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -4461,19 +4461,9 @@ static void hci_num_comp_pkts_evt(struct hci_dev *hdev, void *data,
 		case CIS_LINK:
 		case BIS_LINK:
 		case PA_LINK:
-			if (hdev->iso_pkts) {
-				hdev->iso_cnt += count;
-				if (hdev->iso_cnt > hdev->iso_pkts)
-					hdev->iso_cnt = hdev->iso_pkts;
-			} else if (hdev->le_pkts) {
-				hdev->le_cnt += count;
-				if (hdev->le_cnt > hdev->le_pkts)
-					hdev->le_cnt = hdev->le_pkts;
-			} else {
-				hdev->acl_cnt += count;
-				if (hdev->acl_cnt > hdev->acl_pkts)
-					hdev->acl_cnt = hdev->acl_pkts;
-			}
+			hdev->iso_cnt += count;
+			if (hdev->iso_cnt > hdev->iso_pkts)
+				hdev->iso_cnt = hdev->iso_pkts;
 			break;
 
 		default: