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authorJohannes Berg <johannes.berg@intel.com>2011-12-14 12:20:29 +0100
committerJohn W. Linville <linville@tuxdriver.com>2011-12-15 14:45:46 -0500
commit87be1e1e00f870567780dec111193426b4c085e8 (patch)
tree1d86707afa1e5f116804f0722573eeaf9d9ab13d /net/mac80211
parent92b62f28d02d3aafd824062f0ea57cc36fbc59d6 (diff)
downloadop-kernel-dev-87be1e1e00f870567780dec111193426b4c085e8.zip
op-kernel-dev-87be1e1e00f870567780dec111193426b4c085e8.tar.gz
mac80211: use station mutex in configuration
There's no need to use RCU here, we can just lock the station mutex instead. This allows the code to sleep, which is necessary for later patches. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/cfg.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index bc83a66..3acda35 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -954,11 +954,11 @@ static int ieee80211_change_station(struct wiphy *wiphy,
struct sta_info *sta;
struct ieee80211_sub_if_data *vlansdata;
- rcu_read_lock();
+ mutex_lock(&local->sta_mtx);
sta = sta_info_get_bss(sdata, mac);
if (!sta) {
- rcu_read_unlock();
+ mutex_unlock(&local->sta_mtx);
return -ENOENT;
}
@@ -966,7 +966,7 @@ static int ieee80211_change_station(struct wiphy *wiphy,
if (sdata->vif.type == NL80211_IFTYPE_STATION &&
params->supported_rates &&
!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
- rcu_read_unlock();
+ mutex_unlock(&local->sta_mtx);
return -EINVAL;
}
@@ -975,13 +975,13 @@ static int ieee80211_change_station(struct wiphy *wiphy,
if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
vlansdata->vif.type != NL80211_IFTYPE_AP) {
- rcu_read_unlock();
+ mutex_unlock(&local->sta_mtx);
return -EINVAL;
}
if (params->vlan->ieee80211_ptr->use_4addr) {
if (vlansdata->u.vlan.sta) {
- rcu_read_unlock();
+ mutex_unlock(&local->sta_mtx);
return -EBUSY;
}
@@ -997,7 +997,7 @@ static int ieee80211_change_station(struct wiphy *wiphy,
if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && params->supported_rates)
rate_control_rate_init(sta);
- rcu_read_unlock();
+ mutex_unlock(&local->sta_mtx);
if (sdata->vif.type == NL80211_IFTYPE_STATION &&
params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
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