On Wed, 2013-09-18 at 16:31 -0400, Eduardo Valentin wrote:
> +/**
> + * of_parse_thermal_zones - parse device tree thermal data
> + *
> + * Initialization function that can be called by machine initialization
> + * code to parse thermal data and populate the thermal framework
> + * with hardware thermal zones info. This function only parses thermal zones.
> + * Cooling devices and sensor devices nodes are supposed to be parsed
> + * by their respective drivers.
> + *
> + * Return: 0 on success, proper error code otherwise
> + *
> + */
> +int __init of_parse_thermal_zones(void)
> +{
> + struct device_node *np, *child;
> + struct __thermal_zone *tz;
> + struct thermal_zone_device_ops *ops;
> +
> + np = of_find_node_by_name(NULL, "thermal-zones");
> + if (!np) {
> + pr_err("unable to find thermal zones\n");
> + return 0;
return 0? This is success?
> + }
> +
> + for_each_child_of_node(np, child) {
> + struct thermal_zone_device *zone;
> + struct thermal_zone_params *tzp;
> +
> + tz = thermal_of_build_thermal_zone(child);
> + if (IS_ERR(tz)) {
> + pr_err("failed to build thermal zone %ld\n",
> + PTR_ERR(tz));
> + return 0;
> + }
> +
> + ops = kzalloc(sizeof(*ops), GFP_KERNEL);
> + if (!ops)
> + return 0;
> +
> + memcpy(ops, &of_thermal_ops, sizeof(*ops));
kmemdup instead of alloc/memcpy
> + tzp = kzalloc(sizeof(*tzp), GFP_KERNEL);
> + if (!ops)
> + return 0;
> +
> + /* No hwmon because there might be hwmon drivers registering */
> + tzp->no_hwmon = true;
> +
> + zone = thermal_zone_device_register(child->name, tz->ntrips,
> + 0, tz,
> + ops, tzp,
> + tz->passive_delay,
> + tz->polling_delay);
> + if (IS_ERR(zone))
> + pr_err("Failed to build %s zone %ld\n", child->name,
> + PTR_ERR(zone));
> + }
> + return 0;
> +}
All returns are 0, always successful?
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