diff options
| author | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2014-05-13 12:54:09 +0300 |
|---|---|---|
| committer | Show Liu <show.liu@linaro.org> | 2014-06-18 12:04:30 +0800 |
| commit | 50c295004e978fbcce84816610dbc29ca8e8488f (patch) | |
| tree | 90e9437d8cc220f6975808685f9e5682aace0809 /net | |
| parent | ed40b2181c6891cc2d3f336684c927d066d01b75 (diff) | |
mac80211: fix suspend vs. association race
commit c52666aef9f2dff39276eb53f15d99e2e229870f upstream.
If the association is in progress while we suspend, the
stack will be in a messed up state. Clean it before we
suspend.
This patch completes Johannes's patch:
1a1cb744de160ee70086a77afff605bbc275d291
Author: Johannes Berg <johannes.berg@intel.com>
mac80211: fix suspend vs. authentication race
Fixes: 12e7f517029d ("mac80211: cleanup generic suspend/resume procedures")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/mac80211/mlme.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 47059ac44e2..e6a84cb1a5e 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -3511,18 +3511,24 @@ void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata) sdata_lock(sdata); - if (ifmgd->auth_data) { + if (ifmgd->auth_data || ifmgd->assoc_data) { + const u8 *bssid = ifmgd->auth_data ? + ifmgd->auth_data->bss->bssid : + ifmgd->assoc_data->bss->bssid; + /* - * If we are trying to authenticate while suspending, cfg80211 - * won't know and won't actually abort those attempts, thus we - * need to do that ourselves. + * If we are trying to authenticate / associate while suspending, + * cfg80211 won't know and won't actually abort those attempts, + * thus we need to do that ourselves. */ - ieee80211_send_deauth_disassoc(sdata, - ifmgd->auth_data->bss->bssid, + ieee80211_send_deauth_disassoc(sdata, bssid, IEEE80211_STYPE_DEAUTH, WLAN_REASON_DEAUTH_LEAVING, false, frame_buf); - ieee80211_destroy_auth_data(sdata, false); + if (ifmgd->assoc_data) + ieee80211_destroy_assoc_data(sdata, false); + if (ifmgd->auth_data) + ieee80211_destroy_auth_data(sdata, false); cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf, IEEE80211_DEAUTH_FRAME_LEN); } |