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mac80211: avoid using uninitialized stack data
Avoid a case where we would access uninitialized stack data if the AP
advertises HT support without 40MHz channel support.
Cc: stable@vger.kernel.org
Fixes: f3000e1b43
("mac80211: fix broken use of VHT/20Mhz with some APs")
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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@ -174,6 +174,7 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
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if (!(ht_cap->cap_info &
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cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40))) {
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ret = IEEE80211_STA_DISABLE_40MHZ;
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vht_chandef = *chandef;
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goto out;
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}
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