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guard against adhoc_pick_channel returning a NULL channel; this can

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happen after a scan cache flush (e.g. in response to ifconfig wlan bssid -)
This commit is contained in:
Sam Leffler 2008-09-27 21:18:40 +00:00
parent 4bf0267894
commit 63c61408ef
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=183421
1 changed files with 6 additions and 3 deletions
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9
sys/net80211/ieee80211_scan_sta.c
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@ -1392,9 +1392,12 @@ adhoc_pick_bss(struct ieee80211_scan_state *ss, struct ieee80211vap *vap)
*/
if (vap->iv_des_chan == IEEE80211_CHAN_ANYC ||
IEEE80211_IS_CHAN_RADAR(vap->iv_des_chan)) {
chan = ieee80211_ht_adjust_channel(vap->iv_ic,
adhoc_pick_channel(ss, 0),
vap->iv_flags_ext);
struct ieee80211com *ic = vap->iv_ic;
chan = adhoc_pick_channel(ss, 0);
if (chan != NULL)
chan = ieee80211_ht_adjust_channel(ic,
chan, vap->iv_flags_ext);
} else
chan = vap->iv_des_chan;
if (chan != NULL) {