struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name)
{
struct opp_table *opp_table;
- int ret;
opp_table = dev_pm_opp_get_opp_table(dev);
if (!opp_table)
/* Make sure there are no concurrent readers while updating opp_table */
WARN_ON(!list_empty(&opp_table->opp_list));
- /* Do we already have a prop-name associated with opp_table? */
- if (opp_table->prop_name) {
- dev_err(dev, "%s: Already have prop-name %s\n", __func__,
- opp_table->prop_name);
- ret = -EBUSY;
- goto err;
- }
+ /* Another CPU that shares the OPP table has set the property ? */
+ if (opp_table->prop_name)
+ return opp_table;
opp_table->prop_name = kstrdup(name, GFP_KERNEL);
if (!opp_table->prop_name) {
- ret = -ENOMEM;
- goto err;
+ dev_pm_opp_put_opp_table(opp_table);
+ return ERR_PTR(-ENOMEM);
}
return opp_table;
-
-err:
- dev_pm_opp_put_opp_table(opp_table);
-
- return ERR_PTR(ret);
}
EXPORT_SYMBOL_GPL(dev_pm_opp_set_prop_name);
/* Make sure there are no concurrent readers while updating opp_table */
WARN_ON(!list_empty(&opp_table->opp_list));
- if (!opp_table->prop_name) {
- pr_err("%s: Doesn't have a prop-name\n", __func__);
- return;
- }
-
kfree(opp_table->prop_name);
opp_table->prop_name = NULL;