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authorSujith <Sujith.Manoharan@atheros.com>2010-02-10 14:52:21 +0530
committerJohn W. Linville <linville@tuxdriver.com>2010-02-10 16:36:52 -0500
commit4cad6c7c38930618d77e65af82c1403d63879eee (patch)
tree9e8c14e0819c42c8ac290f6a0bba5ca45a3ecef2 /net/mac80211/agg-tx.c
parentf32338319f10c4ca5499c19edc5b3618896920ba (diff)
downloadop-kernel-dev-4cad6c7c38930618d77e65af82c1403d63879eee.zip
op-kernel-dev-4cad6c7c38930618d77e65af82c1403d63879eee.tar.gz
mac80211: Deny TX BA session requests during disassociation
In associated state, when bringing an interface down, existing BA sessions are torn down. When this is in progress, nothing prevents mac80211 from accepting another BA session start request. Use a new station flag to fix this. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/agg-tx.c')
-rw-r--r--net/mac80211/agg-tx.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 718fbcf..5538e1b 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -237,6 +237,14 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid)
sdata->vif.type != NL80211_IFTYPE_AP)
return -EINVAL;
+ if (test_sta_flags(sta, WLAN_STA_DISASSOC)) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "Disassociation is in progress. "
+ "Denying BA session request\n");
+#endif
+ return -EINVAL;
+ }
+
if (test_sta_flags(sta, WLAN_STA_SUSPEND)) {
#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "Suspend in progress. "
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