> Pls. replace it with following code:
>
> +#ifdef CONFIG_NODE_HOTPLUG_EMU
> +static ssize_t store_nodes_probe(struct sysdev_class *class,
> + struct sysdev_class_attribute *attr,
> + const char *buf, size_t count)
> +{
> + long nid;
> + int ret;
> +
> + ret = strict_strtol(buf, 0, &nid);
> + if (ret == -EINVAL)
> + return ret;
> +
> + ret = hotadd_hidden_nodes(nid);
> + if (!ret)
> + return count;
> + else
> + return -EIO;
> +}
> +#endif
How about this?
err = strict_strtol(buf, 0, &nid);
if (err < 0)
return err;
err = hotadd_hidden_nodes(nid);
if (err < 0)
return err;
return count;
Thanks,
Fengguang
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