4.10-stable review patch. If anyone has any objections, please let me know.
------------------ From: Sara Sharon <[email protected]> commit a95600294157ca7527ee7c70249fb53e09d8c566 upstream. Access should be by rcu_dereference. Issue was found by sparse. Fixes: 65e254821cee ("iwlwifi: mvm: use firmware station PM notification for AP_LINK_PS") Signed-off-by: Sara Sharon <[email protected]> Signed-off-by: Luca Coelho <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -2411,7 +2411,7 @@ void iwl_mvm_sta_pm_notif(struct iwl_mvm return; rcu_read_lock(); - sta = mvm->fw_id_to_mac_id[notif->sta_id]; + sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); if (WARN_ON(IS_ERR_OR_NULL(sta))) { rcu_read_unlock(); return;
