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Commit 55f7435c authored by Luis R. Rodriguez's avatar Luis R. Rodriguez Committed by Johannes Berg
Browse files

cfg80211: DFS check dfs_region before usage 



Check the DFS region before channel availability check.

Signed-off-by: default avatarLuis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: default avatarJanusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 6c474799

net/wireless/nl80211.c

+5 −0
Original line number Original line Diff line number Diff line
@@ -5651,8 +5651,13 @@ static int nl80211_start_radar_detection(struct sk_buff *skb, 
	struct net_device *dev = info->user_ptr[1];

	struct net_device *dev = info->user_ptr[1];

	struct wireless_dev *wdev = dev->ieee80211_ptr;

	struct wireless_dev *wdev = dev->ieee80211_ptr;

	struct cfg80211_chan_def chandef;

	struct cfg80211_chan_def chandef;

	enum nl80211_dfs_regions dfs_region;

	int err;

	int err;





	dfs_region = reg_get_dfs_region(wdev->wiphy);

	if (dfs_region == NL80211_DFS_UNSET)

		return -EINVAL;



	err = nl80211_parse_chandef(rdev, info, &chandef);

	err = nl80211_parse_chandef(rdev, info, &chandef);

	if (err)

	if (err)

		return err;

		return err;