Bluetooth: ISO: Add check for can_send in bt_iso_chan_send

Thalley · carlescufi · commit f67e12ae8e82 · 2022-05-15T21:32:19.000+02:00
Ensure that we don't attempt to send any data to the
controller if `can_send` is not set, and return an
error code to the application instead.

Signed-off-by: Emil Gydesen &lt;emil.gydesen@nordicsemi.no&gt;
diff --git a/subsys/bluetooth/host/iso.c b/subsys/bluetooth/host/iso.c
@@ -696,6 +696,10 @@ int bt_iso_chan_send(struct bt_iso_chan *chan, struct net_buf *buf)
 	}
 
 	iso_conn = chan->iso;
+	if (!iso_conn->iso.can_send) {
+		BT_DBG("Channel not able to send");
+		return -EINVAL;
+	}
 
 	hdr = net_buf_push(buf, sizeof(*hdr));
 	hdr->sn = sys_cpu_to_le16(iso_conn->iso.seq_num);

Original file line number	Diff line number	Diff line change
`@@ -696,6 +696,10 @@ int bt_iso_chan_send(struct bt_iso_chan chan, struct net_buf buf)`
`696`	`696`	`}`
`697`	`697`
`698`	`698`	`iso_conn = chan->iso;`
	`699`	`+ if (!iso_conn->iso.can_send) {`
	`700`	`+ BT_DBG("Channel not able to send");`
	`701`	`+ return -EINVAL;`
	`702`	`+ }`
`699`	`703`
`700`	`704`	`hdr = net_buf_push(buf, sizeof(*hdr));`
`701`	`705`	`hdr->sn = sys_cpu_to_le16(iso_conn->iso.seq_num);`