diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2013-01-18 21:21:31 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-01-24 16:07:58 +0100 |
| commit | 782d2673655c05a1c0335fe0ee4cb62c23bcc231 (patch) | |
| tree | af61e03bf4fb2a5963120d16c71926b8bfd84310 /net | |
| parent | 683d41ae6755e6ae297ec09603c229795ab9566e (diff) | |
| download | linux-782d2673655c05a1c0335fe0ee4cb62c23bcc231.tar.bz2 | |
mac80211: remove redundant check
There's no need to have two checks for "associated"
in ieee80211_sta_restart(), make the first one locked
to not race (unlikely at this point during resume)
and remove the second check.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/mac80211/mlme.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 62e8f890fed6..5913fb924b12 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -3156,23 +3156,22 @@ void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - if (!ifmgd->associated) + mutex_lock(&ifmgd->mtx); + if (!ifmgd->associated) { + mutex_unlock(&ifmgd->mtx); return; + } if (sdata->flags & IEEE80211_SDATA_DISCONNECT_RESUME) { sdata->flags &= ~IEEE80211_SDATA_DISCONNECT_RESUME; - mutex_lock(&ifmgd->mtx); - if (ifmgd->associated) { - mlme_dbg(sdata, - "driver requested disconnect after resume\n"); - ieee80211_sta_connection_lost(sdata, - ifmgd->associated->bssid, - WLAN_REASON_UNSPECIFIED); - mutex_unlock(&ifmgd->mtx); - return; - } + mlme_dbg(sdata, "driver requested disconnect after resume\n"); + ieee80211_sta_connection_lost(sdata, + ifmgd->associated->bssid, + WLAN_REASON_UNSPECIFIED); mutex_unlock(&ifmgd->mtx); + return; } + mutex_unlock(&ifmgd->mtx); if (test_and_clear_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running)) add_timer(&ifmgd->timer); |