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cfg80211: fix radar_detect combination checking 

All bits from radar_detect must match combination
radar bitmask. Otherwise it is theoretically
possible to lead into an invalid combination
provided a driver reports strange combinations.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Michal Kazior 2014-03-21 14:52:15 +01:00 committed by Johannes Berg
parent 5d52ee8110
commit 65d26f29ec
1 changed files with 1 additions and 1 deletions
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2
net/wireless/util.c
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@ -1309,7 +1309,7 @@ int cfg80211_check_combinations(struct wiphy *wiphy,
}
}
if (radar_detect && !(c->radar_detect_widths & radar_detect))
if (radar_detect != (c->radar_detect_widths & radar_detect))
goto cont;
/* Finally check that all iftypes that we're currently