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| author | David S. Miller <davem@davemloft.net> | 2017-01-06 22:26:19 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-01-06 22:26:19 +0100 |
| commit | 219a808fa1829a82a29197561dc8dd12b7005cad (patch) | |
| tree | 117e7f1325b6a70a0eef4461ac0c973d1af96c8f /net | |
| parent | vti6: fix device register to report IFLA_INFO_KIND (diff) | |
| parent | nl80211: fix sched scan netlink socket owner destruction (diff) | |
| download | linux-219a808fa1829a82a29197561dc8dd12b7005cad.tar.xz linux-219a808fa1829a82a29197561dc8dd12b7005cad.zip | |
Merge tag 'mac80211-for-davem-2017-01-06' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
Another single fix, to correctly handle destruction of a
single netlink socket having ownership of multiple objects
(scheduled scan requests and interfaces.)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/wireless/nl80211.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 3df85a751a85..ef5eff93a8b8 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -14502,13 +14502,17 @@ static int nl80211_netlink_notify(struct notifier_block * nb, list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) { bool schedule_destroy_work = false; - bool schedule_scan_stop = false; struct cfg80211_sched_scan_request *sched_scan_req = rcu_dereference(rdev->sched_scan_req); if (sched_scan_req && notify->portid && - sched_scan_req->owner_nlportid == notify->portid) - schedule_scan_stop = true; + sched_scan_req->owner_nlportid == notify->portid) { + sched_scan_req->owner_nlportid = 0; + + if (rdev->ops->sched_scan_stop && + rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) + schedule_work(&rdev->sched_scan_stop_wk); + } list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) { cfg80211_mlme_unregister_socket(wdev, notify->portid); @@ -14539,12 +14543,6 @@ static int nl80211_netlink_notify(struct notifier_block * nb, spin_unlock(&rdev->destroy_list_lock); schedule_work(&rdev->destroy_work); } - } else if (schedule_scan_stop) { - sched_scan_req->owner_nlportid = 0; - - if (rdev->ops->sched_scan_stop && - rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) - schedule_work(&rdev->sched_scan_stop_wk); } } |