[PATCH] ipw2200: Fix WPA network selection problem

Do not avoid APs with wpa_ie or rsn_ie if !ieee->wpa_enabled
There are broken APs out there that fill these elements even
though encryption is disnabled. Also, this breaks legit WEP to
WPA migration scenarious.

We add a checking to prohibite WPA configured STA trying to
associate with non-WPA supported APs.

Signed-off-by: Stefan Rompf <stefan@loplof.de>
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ipw2200.c

@@ -5533,8 +5533,8 @@ static int ipw_best_network(struct ipw_priv *priv,
 		return 0;
 	}
 
-	if (!priv->ieee->wpa_enabled && (network->wpa_ie_len > 0 ||
-					 network->rsn_ie_len > 0)) {
+	if (priv->ieee->wpa_enabled &&
+	    network->wpa_ie_len == 0 && network->rsn_ie_len == 0) {
 		IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
 				"because of WPA capability mismatch.\n",
 				escape_essid(network->ssid, network->ssid_len),