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mac80211: fix infinite loop in ieee80211_determine_chantype 

Commit "3d9646d mac80211: fix channel selection bug" introduced a possible
infinite loop by moving the out target above the chandef_downgrade
while loop.  When we downgrade to NL80211_CHAN_WIDTH_20_NOHT, we jump
back up to re-run the while loop...indefinitely.  Replace goto with
break and carry on.  This may not be sufficient to connect to the AP,
but will at least keep the cpu from livelocking.  Thanks to Derek Atkins
as an extra pair of debugging eyes.

Cc: stable@kernel.org
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Chris Wright 2013-07-31 12:12:24 -07:00 committed by Johannes Berg
parent c319d50bfc
commit b56e4b857c
1 changed files with 1 additions and 1 deletions
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2
net/mac80211/mlme.c
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@ -338,7 +338,7 @@ out:
if (WARN_ON(chandef->width == NL80211_CHAN_WIDTH_20_NOHT)) {
ret = IEEE80211_STA_DISABLE_HT |
IEEE80211_STA_DISABLE_VHT;
goto out;
break;
}
ret |= chandef_downgrade(chandef);