[PATCH] softmac: Fix WX and association related races
This fixes some race conditions in the WirelessExtension
handling and association handling code.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/ieee80211/softmac/ieee80211softmac_io.c b/net/ieee80211/softmac/ieee80211softmac_io.c
index 82bfddb..e8419cf 100644
--- a/net/ieee80211/softmac/ieee80211softmac_io.c
+++ b/net/ieee80211/softmac/ieee80211softmac_io.c
@@ -475,8 +475,13 @@
{
struct ieee80211softmac_device *mac = ieee80211_priv(dev);
- if (mac->associated && memcmp(network->bssid, mac->associnfo.bssid, ETH_ALEN) == 0)
- ieee80211softmac_process_erp(mac, network->erp_value);
+ /* This might race, but we don't really care and it's not worth
+ * adding heavyweight locking in this fastpath.
+ */
+ if (mac->associnfo.associated) {
+ if (memcmp(network->bssid, mac->associnfo.bssid, ETH_ALEN) == 0)
+ ieee80211softmac_process_erp(mac, network->erp_value);
+ }
return 0;
}