nl80211: don't assume wdev->netdev exists
There are a few places that iterate the wdev list and assume wdev->netdev exists, check there. The rfkill one has to be extended for each non-netdev type later. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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@ -177,6 +177,8 @@ int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
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return -EOPNOTSUPP;
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list_for_each_entry(wdev, &rdev->wdev_list, list) {
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if (!wdev->netdev)
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continue;
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wdev->netdev->features &= ~NETIF_F_NETNS_LOCAL;
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err = dev_change_net_namespace(wdev->netdev, net, "wlan%d");
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if (err)
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@ -190,6 +192,8 @@ int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
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list_for_each_entry_continue_reverse(wdev, &rdev->wdev_list,
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list) {
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if (!wdev->netdev)
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continue;
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wdev->netdev->features &= ~NETIF_F_NETNS_LOCAL;
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err = dev_change_net_namespace(wdev->netdev, net,
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"wlan%d");
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@ -227,7 +231,8 @@ static int cfg80211_rfkill_set_block(void *data, bool blocked)
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mutex_lock(&rdev->devlist_mtx);
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list_for_each_entry(wdev, &rdev->wdev_list, list)
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dev_close(wdev->netdev);
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if (wdev->netdev)
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dev_close(wdev->netdev);
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mutex_unlock(&rdev->devlist_mtx);
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rtnl_unlock();
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