diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/net80211/ieee80211_scan.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/sys/net80211/ieee80211_scan.c b/sys/net80211/ieee80211_scan.c index 66e8430..eae0480 100644 --- a/sys/net80211/ieee80211_scan.c +++ b/sys/net80211/ieee80211_scan.c @@ -882,6 +882,9 @@ scan_task(void *arg, int pending) } scanend = ticks + SCAN_PRIVATE(ss)->ss_duration; + + /* XXX scan state can change! Re-validate scan state! */ + IEEE80211_UNLOCK(ic); ic->ic_scan_start(ic); /* notify driver */ IEEE80211_LOCK(ic); @@ -944,6 +947,8 @@ scan_task(void *arg, int pending) ic->ic_scan_curchan(ss, maxdwell); IEEE80211_LOCK(ic); + /* XXX scan state can change! Re-validate scan state! */ + SCAN_PRIVATE(ss)->ss_chanmindwell = ticks + ss->ss_mindwell; /* clear mindwell lock and initial channel change flush */ SCAN_PRIVATE(ss)->ss_iflags &= ~ISCAN_REP; @@ -960,6 +965,7 @@ scan_task(void *arg, int pending) IEEE80211_UNLOCK(ic); ic->ic_scan_end(ic); /* notify driver */ IEEE80211_LOCK(ic); + /* XXX scan state can change! Re-validate scan state! */ /* * Since a cancellation may have occured during one of the @@ -969,10 +975,10 @@ scan_task(void *arg, int pending) ((SCAN_PRIVATE(ss)->ss_iflags & ISCAN_CANCEL) != 0)) { /* XXX printf? */ if_printf(vap->iv_ifp, - "%s: OOPS! scan cancelled during driver call!\n", + "%s: OOPS! scan cancelled during driver call (1)!\n", __func__); + scandone = 1; } - scandone |= ((SCAN_PRIVATE(ss)->ss_iflags & ISCAN_CANCEL) != 0); /* * Record scan complete time. Note that we also do @@ -1032,6 +1038,19 @@ scan_task(void *arg, int pending) ticks, ss->ss_mindwell, scanend); /* + * Since a cancellation may have occured during one of the + * driver calls (whilst unlocked), update scandone. + */ + if (scandone == 0 && + ((SCAN_PRIVATE(ss)->ss_iflags & ISCAN_CANCEL) != 0)) { + /* XXX printf? */ + if_printf(vap->iv_ifp, + "%s: OOPS! scan cancelled during driver call (2)!\n", + __func__); + scandone = 1; + } + + /* * Clear the SCAN bit first in case frames are * pending on the station power save queue. If * we defer this then the dispatch of the frames |
