From: Johannes Berg <johannes@sipsolutions.net>
Date: Mon, 1 Dec 2008 11:07:56 +0000 (+0100)
Subject: cfg80211: fix wiphy remove if no regulatory request
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=4a4f4d805db5c930ee4185162dcdc8db9a0379d5;p=openwrt%2Fstaging%2Fblogic.git

cfg80211: fix wiphy remove if no regulatory request

Fixes the segfault I just pointed out.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 0990059f7e48..9e5a9f975478 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1330,7 +1330,7 @@ int set_regdom(const struct ieee80211_regdomain *rd)
 /* Caller must hold cfg80211_drv_mutex */
 void reg_device_remove(struct wiphy *wiphy)
 {
-	if (!last_request->wiphy)
+	if (!last_request || !last_request->wiphy)
 		return;
 	if (last_request->wiphy != wiphy)
 		return;