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authorJouni Malinen <j@w1.fi>2011-10-23 22:36:04 +0300
committerJohn W. Linville <linville@tuxdriver.com>2011-11-02 15:23:12 -0400
commite3a4cc2f073739c9c9c2e97efc774703061f034a (patch)
tree4ad2345dcf7837ee9ea98327d657d7f1efc8a50b /net/mac80211/cfg.c
parent94d55d62bd757611f07a9122e5e07ce929b8d38d (diff)
downloadop-kernel-dev-e3a4cc2f073739c9c9c2e97efc774703061f034a.zip
op-kernel-dev-e3a4cc2f073739c9c9c2e97efc774703061f034a.tar.gz
mac80211: Fix TDLS support validation in add_station handler
We need to verify whether the command is successful before allocating the station entry to avoid extra processing. This also fixes a memory leak on the error path. Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/cfg.c')
-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 ebd7fb1..d06c65f 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -832,6 +832,12 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
if (is_multicast_ether_addr(mac))
return -EINVAL;
+ /* Only TDLS-supporting stations can add TDLS peers */
+ if ((params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
+ !((wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
+ sdata->vif.type == NL80211_IFTYPE_STATION))
+ return -ENOTSUPP;
+
sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
if (!sta)
return -ENOMEM;
@@ -841,12 +847,6 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
sta_apply_parameters(local, sta, params);
- /* Only TDLS-supporting stations can add TDLS peers */
- if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
- !((wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
- sdata->vif.type == NL80211_IFTYPE_STATION))
- return -ENOTSUPP;
-
rate_control_rate_init(sta);
layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
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