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authorGuy Cohen <guy.cohen@intel.com>2008-07-03 20:56:13 +0400
committerJohn W. Linville <linville@tuxdriver.com>2008-07-07 23:31:39 +0400
commit8db9369ff92b1cd93566baadd8bd2992f025fdd0 (patch)
tree0b52162cacc30138045d0a52476d0a61365ac10d /net
parent0ff1cca0e272045b9c11a2ff94bd3e6893c9308c (diff)
downloadlinux-8db9369ff92b1cd93566baadd8bd2992f025fdd0.tar.xz
mac80211: move netif_carrier_on to after ieee80211_bss_info_change_notify
Putting netif_carrier_on before configuring the driver/device with the new association state may cause a race (tx frames may be sent before configuration is done) Signed-off-by: Guy Cohen <guy.cohen@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/mlme.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 4d2b582dd055..a7018540ae89 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -547,15 +547,14 @@ static void ieee80211_set_associated(struct net_device *dev,
sdata->bss_conf.ht_bss_conf = &conf->ht_bss_conf;
}
- netif_carrier_on(dev);
ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN);
memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN);
ieee80211_sta_send_associnfo(dev, ifsta);
} else {
+ netif_carrier_off(dev);
ieee80211_sta_tear_down_BA_sessions(dev, ifsta->bssid);
ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
- netif_carrier_off(dev);
ieee80211_reset_erp_info(dev);
sdata->bss_conf.assoc_ht = 0;
@@ -569,6 +568,10 @@ static void ieee80211_set_associated(struct net_device *dev,
sdata->bss_conf.assoc = assoc;
ieee80211_bss_info_change_notify(sdata, changed);
+
+ if (assoc)
+ netif_carrier_on(dev);
+
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
}