PM / Domains: Don't check for an existing device when adding a new

When adding a device to a genpd, we no longer need to walk genpd's list
of existing devices to verify it hasn't already been added.

Instead we can now rely on the verification of not allowing existing
generic_pm_domain_data for a device, since that has the same meaning.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 76eb0c3ef2b34c4bd9cf782aa17207518e661f60..88198ba919d915d29f5d60f1e42ee405e453a343 100644 (file)
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -1415,7 +1415,6 @@ int __pm_genpd_add_device(struct generic_pm_domain *genpd, struct device *dev,
                          struct gpd_timing_data *td)
 {
        struct generic_pm_domain_data *gpd_data_new, *gpd_data = NULL;
-       struct pm_domain_data *pdd;
        int ret = 0;
 
        dev_dbg(dev, "%s()\n", __func__);
@@ -1434,12 +1433,6 @@ int __pm_genpd_add_device(struct generic_pm_domain *genpd, struct device *dev,
                goto out;
        }
 
-       list_for_each_entry(pdd, &genpd->dev_list, list_node)
-               if (pdd->dev == dev) {
-                       ret = -EINVAL;
-                       goto out;
-               }
-
        ret = dev_pm_get_subsys_data(dev);
        if (ret)
                goto out;