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| author | Johannes Berg <johannes.berg@intel.com> | 2013-12-30 23:12:37 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-12-30 23:14:03 +0100 |
| commit | 194ff52d42fd0b55fe0fcfbf4586ae9d7ab1f780 (patch) | |
| tree | eddb4c40ce1cc7a8aa590b1aeaf162a8a8bdba5a /net/mac80211 | |
| parent | 32db6b54dfba38aa8fa4072b2a3fc6425139166a (diff) | |
| download | linux-194ff52d42fd0b55fe0fcfbf4586ae9d7ab1f780.tar.gz linux-194ff52d42fd0b55fe0fcfbf4586ae9d7ab1f780.tar.bz2 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/mac80211')
| -rw-r--r-- | net/mac80211/cfg.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 09d2e58a2ba7..fd1020e791d8 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -3854,7 +3854,7 @@ static int ieee80211_set_qos_map(struct wiphy *wiphy, new_qos_map = NULL; } - old_qos_map = rtnl_dereference(sdata->qos_map); + old_qos_map = sdata_dereference(sdata->qos_map, sdata); rcu_assign_pointer(sdata->qos_map, new_qos_map); if (old_qos_map) kfree_rcu(old_qos_map, rcu_head); |