diff options
| author | Krzysztof Kozlowski <krzk@kernel.org> | 2017-06-28 16:56:18 +0200 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-08-31 01:38:15 +0200 |
| commit | 218a2b4c7cbd86633186ca96573d86d7ee05b7b9 (patch) | |
| tree | 57467f643d4f3111c447b0c0952db033bafb218f /drivers | |
| parent | 1804f9951e2b17fbd5461cb3b756e32b318902f6 (diff) | |
PM / Domains: Fix unsafe iteration over modified list of device links
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 <krzk@kernel.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/base/power/domain.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 7072404c8..8d73f999f 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -1692,7 +1692,7 @@ int pm_genpd_add_subdomain_names(const char *master_name, 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)) @@ -1701,7 +1701,7 @@ int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd, start: genpd_acquire_lock(genpd); - 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; |