PM / Domains: Fix unsafe iteration over modified list of domain providers
authorKrzysztof Kozlowski <krzk@kernel.org>
Wed, 28 Jun 2017 14:56:19 +0000 (16:56 +0200)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Wed, 28 Jun 2017 23:24:35 +0000 (01:24 +0200)
of_genpd_del_provider() iterates over list of domain provides and
removes matching element thus it has to use safe version of list
iteration.

Fixes: aa42240ab254 (PM / Domains: Add generic OF-based PM domain look-up)
Cc: 3.19+ <stable@vger.kernel.org> # 3.19+
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/base/power/domain.c

index 048dc74..0b836fd 100644 (file)
@@ -1835,12 +1835,12 @@ EXPORT_SYMBOL_GPL(of_genpd_add_provider_onecell);
  */
 void of_genpd_del_provider(struct device_node *np)
 {
-       struct of_genpd_provider *cp;
+       struct of_genpd_provider *cp, *tmp;
        struct generic_pm_domain *gpd;
 
        mutex_lock(&gpd_list_lock);
        mutex_lock(&of_genpd_mutex);
-       list_for_each_entry(cp, &of_genpd_providers, link) {
+       list_for_each_entry_safe(cp, tmp, &of_genpd_providers, link) {
                if (cp->node == np) {
                        /*
                         * For each PM domain associated with the