From mboxrd@z Thu Jan 1 00:00:00 1970 From: Krzysztof Kozlowski Subject: [PATCH 6/8] PM / domains: Fix unsafe iteration over modified list of domains Date: Fri, 9 Jun 2017 18:08:51 +0200 Message-ID: <20170609160853.31789-7-krzk@kernel.org> References: <20170609160853.31789-1-krzk@kernel.org> Return-path: In-Reply-To: <20170609160853.31789-1-krzk@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: "Rafael J. Wysocki" , Kevin Hilman , Ulf Hansson , Pavel Machek , Len Brown , Greg Kroah-Hartman , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Krzysztof Kozlowski , stable@vger.kernel.org List-Id: linux-pm@vger.kernel.org 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") Cc: Signed-off-by: Krzysztof Kozlowski --- 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 e426ceff1a59..c1e22b613287 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -1939,14 +1939,14 @@ 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; -- 2.9.3