From 0f70f398460adb2d8aabb00e7e65f58247f219a3 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Mon, 1 Dec 2008 18:13:05 +0100
Subject: [PATCH] cfg80211: "fix" 11d oops

This "fixes" the 11d oops I was seeing. This needs some more work but I
cannot work on it now.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 net/wireless/reg.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 9e5a9f975478..4f877535e666 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -989,6 +989,9 @@ void regulatory_hint_11d(struct wiphy *wiphy,
 	u32 checksum = 0;
 	enum environment_cap env = ENVIRON_ANY;
 
+	if (!last_request)
+		return;
+
 	mutex_lock(&cfg80211_drv_mutex);
 
 	/* IE len must be evenly divisible by 2 */
-- 
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