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PM / Domains: Fix unsafe iteration over modified list of domain providers 

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: aa42240ab2 (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>
This commit is contained in:
Krzysztof Kozlowski 2017-06-28 16:56:19 +02:00 committed by Rafael J. Wysocki
parent c6e83cac3e
commit b556b15dc0
1 changed files with 2 additions and 2 deletions
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4
drivers/base/power/domain.c
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@ -1835,12 +1835,12 @@ EXPORT_SYMBOL_GPL(of_genpd_add_provider_onecell);
*/ */
void of_genpd_del_provider(struct device_node *np) 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; struct generic_pm_domain *gpd;
mutex_lock(&gpd_list_lock); mutex_lock(&gpd_list_lock);
mutex_lock(&of_genpd_mutex); 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) { if (cp->node == np) {
/* /*
* For each PM domain associated with the * For each PM domain associated with the