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qtnfmac: check that MAC exists in regulatory notifier 

It is possible that regulatory notifier is called before MAC data
was allocated. We need to verify that MAC data exists before trying
to send a regulatory change event.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Igor Mitsyanko 2017-12-19 14:28:47 +03:00 committed by Kalle Valo
parent 83476cd587
commit 4fd045cdb2
1 changed files with 3 additions and 0 deletions
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3
drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
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@ -802,6 +802,9 @@ static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy_in,
continue;
mac = bus->mac[mac_idx];
if (!mac)
continue;
wiphy = priv_to_wiphy(mac);
for (band = 0; band < NUM_NL80211_BANDS; ++band) {