[nrf fromtree] usb: device_next: uac2: Do not leak buffer on failed enqueue

tmon-nordic · tmon-nordic · commit b6b3e591d113 · 2025-07-29T14:10:32.000+02:00
Release receive buffer on failed endpoint enqueue. Signed-off-by: Tomasz Moń <tomasz.mon@nordicsemi.no> (cherry picked from commit f9ac318)
diff --git a/subsys/usb/device_next/class/usbd_uac2.c b/subsys/usb/device_next/class/usbd_uac2.c
@@ -399,6 +399,8 @@ static void schedule_iso_out_read(struct usbd_class_data *const c_data,
 	if (ret) {
 		LOG_ERR("Failed to enqueue net_buf for 0x%02x", ep);
 		net_buf_unref(buf);
+		ctx->ops->data_recv_cb(dev, terminal,
+				       data_buf, 0, ctx->user_data);
 		atomic_clear_bit(queued_bits, as_idx);
 	}
 }

Original file line number	Diff line number	Diff line change
`@@ -399,6 +399,8 @@ static void schedule_iso_out_read(struct usbd_class_data *const c_data,`
`399`	`399`	`if (ret) {`
`400`	`400`	`LOG_ERR("Failed to enqueue net_buf for 0x%02x", ep);`
`401`	`401`	`net_buf_unref(buf);`
	`402`	`+ ctx->ops->data_recv_cb(dev, terminal,`
	`403`	`+ data_buf, 0, ctx->user_data);`
`402`	`404`	`atomic_clear_bit(queued_bits, as_idx);`
`403`	`405`	`}`
`404`	`406`	`}`