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authorJohannes Berg <johannes.berg@intel.com>2012-01-13 14:17:59 +0100
committerJohn W. Linville <linville@tuxdriver.com>2012-01-13 14:40:58 -0500
commit543d1b92d5500841e70f15e79d197bbffed36561 (patch)
treea41f7f9dced47e2f9fd967531107f57a7a59d1fd /net
parentdfd00c4c8f3dfa1fd7cec45f83d98b2a49743dcd (diff)
downloadlinux-linaro-stable-543d1b92d5500841e70f15e79d197bbffed36561.tar.gz
mac80211: fix no-op authorized transitions
When userspace attempts to authorize a station that is already authorized, nothing happens as you'd expect. Similarly, when it unauthorizes a station that is associated, nothing happens. However, when it unauthorizes a station that isn't even associated yet, we erroneously try to move the station to associated. This seems to happen occasionally as a result of a race when wpa_supplicant attempts to unauthorize the port in managed mode. Particularly with my new patches to keep stations, it can then move a station into ASSOCIATED state before we have really associated, which is really confusing. I introduced this bug in "mac80211: refactor station state transitions" Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/cfg.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index e60df48fa4d4..296620d6ca0c 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -791,7 +791,7 @@ static int sta_apply_parameters(struct ieee80211_local *local,
if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
ret = sta_info_move_state_checked(sta,
IEEE80211_STA_AUTHORIZED);
- else
+ else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
ret = sta_info_move_state_checked(sta,
IEEE80211_STA_ASSOC);
if (ret)