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| author | Johannes Berg | 2013-12-30 23:12:37 +0100 |
|---|---|---|
| committer | Johannes Berg | 2013-12-30 23:14:03 +0100 |
| commit | 194ff52d42fd0b55fe0fcfbf4586ae9d7ab1f780 (patch) | |
| tree | eddb4c40ce1cc7a8aa590b1aeaf162a8a8bdba5a /net/wireless | |
| parent | mac80211: Add support for QoS mapping (diff) | |
| download | kernel-qcow2-linux-194ff52d42fd0b55fe0fcfbf4586ae9d7ab1f780.tar.gz kernel-qcow2-linux-194ff52d42fd0b55fe0fcfbf4586ae9d7ab1f780.tar.xz kernel-qcow2-linux-194ff52d42fd0b55fe0fcfbf4586ae9d7ab1f780.zip | |
cfg80211/mac80211: correct qos-map locking
Since the RTNL can't always be held, use wdev/sdata locking for
the qos-map dereference in mac80211. This requires cfg80211 to
consistently lock it, which it was missing in one place.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/util.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/wireless/util.c b/net/wireless/util.c index 5618888853b2..329b0efb3ded 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -879,7 +879,9 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev, dev->ieee80211_ptr->use_4addr = false; dev->ieee80211_ptr->mesh_id_up_len = 0; + wdev_lock(dev->ieee80211_ptr); rdev_set_qos_map(rdev, dev, NULL); + wdev_unlock(dev->ieee80211_ptr); switch (otype) { case NL80211_IFTYPE_AP: |