This is a note to let you know that I've just added the patch titled
PM / Domains: Fix unsafe iteration over modified list of domains
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pm-domains-fix-unsafe-iteration-over-modified-list-of-domains.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a7e2d1bce4c1db471f1cbc0c4666a3112bbf0994 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Date: Wed, 28 Jun 2017 16:56:20 +0200
Subject: PM / Domains: Fix unsafe iteration over modified list of domains
From: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
commit a7e2d1bce4c1db471f1cbc0c4666a3112bbf0994 upstream.
of_genpd_remove_last() iterates over list of domains and removes
matching element thus it has to use safe version of list iteration.
Fixes: 17926551c98a (PM / Domains: Add support for removing nested PM domains by provider)
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Acked-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/base/power/domain.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -1752,14 +1752,14 @@ EXPORT_SYMBOL_GPL(of_genpd_add_subdomain
*/
struct generic_pm_domain *of_genpd_remove_last(struct device_node *np)
{
- struct generic_pm_domain *gpd, *genpd = ERR_PTR(-ENOENT);
+ struct generic_pm_domain *gpd, *tmp, *genpd = ERR_PTR(-ENOENT);
int ret;
if (IS_ERR_OR_NULL(np))
return ERR_PTR(-EINVAL);
mutex_lock(&gpd_list_lock);
- list_for_each_entry(gpd, &gpd_list, gpd_list_node) {
+ list_for_each_entry_safe(gpd, tmp, &gpd_list, gpd_list_node) {
if (gpd->provider == &np->fwnode) {
ret = genpd_remove(gpd);
genpd = ret ? ERR_PTR(ret) : gpd;
Patches currently in stable-queue which might be from krzk@xxxxxxxxxx are
queue-4.9/pm-domains-fix-unsafe-iteration-over-modified-list-of-domain-providers.patch
queue-4.9/pm-domains-fix-unsafe-iteration-over-modified-list-of-domains.patch
queue-4.9/pm-domains-fix-unsafe-iteration-over-modified-list-of-device-links.patch