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Message-Id: <20170628145623.20716-5-krzk@kernel.org>
Date: Wed, 28 Jun 2017 16:56:19 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: "Rafael J. Wysocki" <rjw@...ysocki.net>,
Kevin Hilman <khilman@...nel.org>,
Ulf Hansson <ulf.hansson@...aro.org>,
Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <krzk@...nel.org>, stable@...r.kernel.org
Subject: [PATCH v3 4/8] 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: aa42240ab254 ("PM / Domains: Add generic OF-based PM domain look-up")
Cc: <stable@...r.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
Acked-by: Ulf Hansson <ulf.hansson@...aro.org>
---
drivers/base/power/domain.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index ebbce6ef0850..793f9f7f3f2d 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -1783,12 +1783,12 @@ 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
--
2.11.0
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