mac80211: fix IE buffer len

Remove size of SSID IE from the IE buffer in scan and
sched scan, since this IE isn't added to this buffer.

Reviewed-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/scan.c

@@ -472,9 +472,7 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
 	if (local->ops->hw_scan) {
 		u8 *ies;
 
-		local->hw_scan_ies_bufsize = 2 + IEEE80211_MAX_SSID_LEN +
-					     local->scan_ies_len +
-					     req->ie_len;
+		local->hw_scan_ies_bufsize = local->scan_ies_len + req->ie_len;
 		local->hw_scan_req = kmalloc(
 				sizeof(*local->hw_scan_req) +
 				req->n_channels * sizeof(req->channels[0]) +
@@ -979,8 +977,7 @@ int __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
 	struct cfg80211_chan_def chandef;
 	int ret, i, iebufsz;
 
-	iebufsz = 2 + IEEE80211_MAX_SSID_LEN +
-		  local->scan_ies_len + req->ie_len;
+	iebufsz = local->scan_ies_len + req->ie_len;
 
 	lockdep_assert_held(&local->mtx);