[PATCH 3/9] drm/xen-front: Read driver configuration from Xen store

[Oleksandr Andrushchenko]

On 02/23/2018 01:20 AM, Boris Ostrovsky wrote:
> On 02/21/2018 03:03 AM, Oleksandr Andrushchenko wrote:
>> +
>> +static int cfg_connector(struct xen_drm_front_info *front_info,
>> +		struct xen_drm_front_cfg_connector *connector,
>> +		const char *path, int index)
>> +{
>> +	char *connector_path;
>> +
>> +	connector_path = devm_kasprintf(&front_info->xb_dev->dev,
>> +			GFP_KERNEL, "%s/%d", path, index);
>> +	if (!connector_path)
>> +		return -ENOMEM;
>> +
>> +	connector->xenstore_path = connector_path;
>> +	if (xenbus_scanf(XBT_NIL, connector_path, XENDISPL_FIELD_RESOLUTION,
>> +			"%d" XENDISPL_RESOLUTION_SEPARATOR "%d",
>> +			&connector->width, &connector->height) < 0) {
>> +		/* either no entry configured or wrong resolution set */
>> +		connector->width = 0;
>> +		connector->height = 0;
> Do you also need to set connector->xenstore_path to NULL? Or maybe just
> set it after xenbus_scanf() call.
Will move it down the code, after "if", thank you
> -boris
>
>
>