mac80211: check that ieee80211_set_power_mgmt only handles STA interfaces.
ieee80211_set_power_mgmt is meant for STA interfaces only. Moreover, since sdata->u.mgd.mtx is only initialized for STA interfaces, using this code for any other type of interface (like creating a monitor interface) will result in a oops. Cc: stable@kernel.org Signed-off-by: Benoit Papillault <benoit.papillault@free.fr> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -1331,6 +1331,9 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
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struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
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struct ieee80211_conf *conf = &local->hw.conf;
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if (sdata->vif.type != NL80211_IFTYPE_STATION)
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return -EOPNOTSUPP;
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if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
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return -EOPNOTSUPP;
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