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authorJohn W. Linville <linville@tuxdriver.com>2014-01-10 10:59:40 -0500
committerJohn W. Linville <linville@tuxdriver.com>2014-01-10 10:59:40 -0500
commit235f93922878234f3d99a4205ebe3634ee955919 (patch)
tree1c61b53899e26839941e46d9f6e4bba28ddd23b5 /net/mac80211/ibss.c
parent11b57f90257c1d6a91cee720151b69e0c2020cf6 (diff)
parent1e2f9295f4c657500111514f92a3d3894d0e05b4 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Conflicts: net/ieee802154/6lowpan.c
Diffstat (limited to 'net/mac80211/ibss.c')
-rw-r--r--net/mac80211/ibss.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index d6ba841437b..771080ec721 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -293,14 +293,17 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
radar_required = true;
}
+ mutex_lock(&local->mtx);
ieee80211_vif_release_channel(sdata);
if (ieee80211_vif_use_channel(sdata, &chandef,
ifibss->fixed_channel ?
IEEE80211_CHANCTX_SHARED :
IEEE80211_CHANCTX_EXCLUSIVE)) {
sdata_info(sdata, "Failed to join IBSS, no channel context\n");
+ mutex_unlock(&local->mtx);
return;
}
+ mutex_unlock(&local->mtx);
memcpy(ifibss->bssid, bssid, ETH_ALEN);
@@ -363,7 +366,9 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
sdata->vif.bss_conf.ssid_len = 0;
RCU_INIT_POINTER(ifibss->presp, NULL);
kfree_rcu(presp, rcu_head);
+ mutex_lock(&local->mtx);
ieee80211_vif_release_channel(sdata);
+ mutex_unlock(&local->mtx);
sdata_info(sdata, "Failed to join IBSS, driver failure: %d\n",
err);
return;
@@ -747,7 +752,9 @@ static void ieee80211_ibss_disconnect(struct ieee80211_sub_if_data *sdata)
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
BSS_CHANGED_IBSS);
drv_leave_ibss(local, sdata);
+ mutex_lock(&local->mtx);
ieee80211_vif_release_channel(sdata);
+ mutex_unlock(&local->mtx);
}
static void ieee80211_csa_connection_drop_work(struct work_struct *work)