cfg80211: fix crash in cfg80211_set_freq()
Since wdev can be NULL, check it before dereferencing it Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -50,7 +50,7 @@ int cfg80211_set_freq(struct cfg80211_registered_device *rdev,
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struct ieee80211_channel *chan;
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int result;
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if (wdev->iftype == NL80211_IFTYPE_MONITOR)
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if (wdev && wdev->iftype == NL80211_IFTYPE_MONITOR)
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wdev = NULL;
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if (wdev) {
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