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authorJukka Rissanen <jukka.rissanen@linux.intel.com>2014-12-15 14:25:39 +0300
committerJohannes Berg <johannes.berg@intel.com>2014-12-18 16:38:44 +0300
commit93a1e86ce10e4898f9ca9cd09d659a8a7780ee5e (patch)
tree42155b15af02c90d9c824ffbc2d3ad8b6d4a9b34 /net/wireless/core.c
parent31a60ed1e95ab8afbadb65599bef12b195080a0c (diff)
downloadlinux-93a1e86ce10e4898f9ca9cd09d659a8a7780ee5e.tar.xz
nl80211: Stop scheduled scan if netlink client disappears
An attribute NL80211_ATTR_SOCKET_OWNER can be set by the scan initiator. If present, the attribute will cause the scan to be stopped if the client dies. Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/core.c')
-rw-r--r--net/wireless/core.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 0743449405ca..456e4c38c279 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -321,6 +321,20 @@ static void cfg80211_destroy_iface_wk(struct work_struct *work)
rtnl_unlock();
}
+static void cfg80211_sched_scan_stop_wk(struct work_struct *work)
+{
+ struct cfg80211_registered_device *rdev;
+
+ rdev = container_of(work, struct cfg80211_registered_device,
+ sched_scan_stop_wk);
+
+ rtnl_lock();
+
+ __cfg80211_stop_sched_scan(rdev, false);
+
+ rtnl_unlock();
+}
+
/* exported functions */
struct wiphy *wiphy_new_nm(const struct cfg80211_ops *ops, int sizeof_priv,
@@ -407,6 +421,7 @@ use_default_name:
INIT_LIST_HEAD(&rdev->destroy_list);
spin_lock_init(&rdev->destroy_list_lock);
INIT_WORK(&rdev->destroy_work, cfg80211_destroy_iface_wk);
+ INIT_WORK(&rdev->sched_scan_stop_wk, cfg80211_sched_scan_stop_wk);
#ifdef CONFIG_CFG80211_DEFAULT_PS
rdev->wiphy.flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
@@ -787,6 +802,7 @@ void wiphy_unregister(struct wiphy *wiphy)
flush_work(&rdev->event_work);
cancel_delayed_work_sync(&rdev->dfs_update_channels_wk);
flush_work(&rdev->destroy_work);
+ flush_work(&rdev->sched_scan_stop_wk);
#ifdef CONFIG_PM
if (rdev->wiphy.wowlan_config && rdev->ops->set_wakeup)