4.9-stable review patch. If anyone has any objections, please let me know.
------------------ From: Krzysztof Kozlowski <[email protected]> commit c6e83cac3eda5f7dd32ee1453df2f7abb5c6cd46 upstream. pm_genpd_remove_subdomain() iterates over domain's master_links list and removes matching element thus it has to use safe version of list iteration. Fixes: f721889ff65a ("PM / Domains: Support for generic I/O PM domains (v8)") Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Ulf Hansson <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- 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 @@ -1244,7 +1244,7 @@ EXPORT_SYMBOL_GPL(pm_genpd_add_subdomain int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd, struct generic_pm_domain *subdomain) { - struct gpd_link *link; + struct gpd_link *l, *link; int ret = -EINVAL; if (IS_ERR_OR_NULL(genpd) || IS_ERR_OR_NULL(subdomain)) @@ -1260,7 +1260,7 @@ int pm_genpd_remove_subdomain(struct gen goto out; } - list_for_each_entry(link, &genpd->master_links, master_node) { + list_for_each_entry_safe(link, l, &genpd->master_links, master_node) { if (link->slave != subdomain) continue;
