diff mbox

[v3,2/4] cfg80211: DFS check dfs_region before usage

Message ID 1385409372-4229-2-git-send-email-janusz.dziedzic@tieto.com (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Janusz.Dziedzic@tieto.com Nov. 25, 2013, 7:56 p.m. UTC 
From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>

Check the DFS region before channel availability check.

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
---
 net/wireless/nl80211.c |    5 +++++
 1 file changed, 5 insertions(+)
diff mbox

Patch

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 70290f8..81579ae 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -5650,8 +5650,13 @@  static int nl80211_start_radar_detection(struct sk_buff *skb,
 	struct net_device *dev = info->user_ptr[1];
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_chan_def chandef;
+	enum nl80211_dfs_regions dfs_region;
 	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);
 	if (err)
 		return err;