diff options
Diffstat (limited to 'drivers/base/power/domain.c')
| -rw-r--r-- | drivers/base/power/domain.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 62f757250235..16550c63d611 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -1473,6 +1473,13 @@ int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd, mutex_lock(&genpd->lock); + if (!list_empty(&subdomain->slave_links) || subdomain->device_count) { + pr_warn("%s: unable to remove subdomain %s\n", genpd->name, + subdomain->name); + ret = -EBUSY; + goto out; + } + list_for_each_entry(link, &genpd->master_links, master_node) { if (link->slave != subdomain) continue; @@ -1491,6 +1498,7 @@ int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd, break; } +out: mutex_unlock(&genpd->lock); return ret; |