diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2014-03-19 09:55:55 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-06-07 13:25:31 -0700 |
| commit | ef55c176c6c08237e68a9c79035ffef2240d39ca (patch) | |
| tree | 52bf7eb15f90c6a022d5281819f4f541a1edf4df /net/mac80211/pm.c | |
| parent | 7cbb2301ae96a8c8874653904cb0de9860322f89 (diff) | |
| download | lwn-ef55c176c6c08237e68a9c79035ffef2240d39ca.tar.gz lwn-ef55c176c6c08237e68a9c79035ffef2240d39ca.zip | |
mac80211: fix suspend vs. authentication race
commit 1a1cb744de160ee70086a77afff605bbc275d291 upstream.
Since Stanislaw's patch removing the quiescing code, mac80211 had
a race regarding suspend vs. authentication: as cfg80211 doesn't
track authentication attempts, it can't abort them. Therefore the
attempts may be kept running while suspending, which can lead to
all kinds of issues, in at least some cases causing an error in
iwlmvm firmware.
Fix this by aborting the authentication attempt when suspending.
Cc: stable@vger.kernel.org
Fixes: 12e7f517029d ("mac80211: cleanup generic suspend/resume procedures")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/mac80211/pm.c')
| -rw-r--r-- | net/mac80211/pm.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c index 340126204343..efb510e6f206 100644 --- a/net/mac80211/pm.c +++ b/net/mac80211/pm.c @@ -101,10 +101,18 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) /* remove all interfaces that were created in the driver */ list_for_each_entry(sdata, &local->interfaces, list) { - if (!ieee80211_sdata_running(sdata) || - sdata->vif.type == NL80211_IFTYPE_AP_VLAN || - sdata->vif.type == NL80211_IFTYPE_MONITOR) + if (!ieee80211_sdata_running(sdata)) continue; + switch (sdata->vif.type) { + case NL80211_IFTYPE_AP_VLAN: + case NL80211_IFTYPE_MONITOR: + continue; + case NL80211_IFTYPE_STATION: + ieee80211_mgd_quiesce(sdata); + break; + default: + break; + } drv_remove_interface(local, sdata); } |