Messages in this thread | | | From | Ulf Hansson <> | Date | Tue, 13 Jun 2017 12:39:14 +0200 | Subject | Re: [PATCH v2 6/8] PM / Domains: Fix unsafe iteration over modified list of domains |
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On 12 June 2017 at 17:17, Krzysztof Kozlowski <krzk@kernel.org> wrote: > 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: <stable@vger.kernel.org> > Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.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 b74b5111957a..33467beaeea4 100644 > --- a/drivers/base/power/domain.c > +++ b/drivers/base/power/domain.c > @@ -1934,14 +1934,14 @@ 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 >
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