in mtk_rpmsg.c [224:246]
static void mtk_register_device_work_function(struct work_struct *register_work)
{
struct mtk_rpmsg_rproc_subdev *subdev = container_of(
register_work, struct mtk_rpmsg_rproc_subdev, register_work);
struct platform_device *pdev = subdev->pdev;
struct mtk_rpmsg_channel_info *info;
int ret;
mutex_lock(&subdev->channels_lock);
list_for_each_entry(info, &subdev->channels, list) {
if (info->registered)
continue;
ret = mtk_rpmsg_register_device(subdev, &info->info);
if (ret) {
dev_err(&pdev->dev, "Can't create rpmsg_device\n");
continue;
}
info->registered = true;
}
mutex_unlock(&subdev->channels_lock);
}