From: Johannes Berg <johannes@sipsolutions.net>
Date: Mon, 13 Jul 2009 11:04:30 +0000 (+0200)
Subject: mac80211_hwsim: fix unregistration
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5d41635195c06fc3116ef3921fe85a9a3ea5ab20;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

mac80211_hwsim: fix unregistration

If you rmmod the module while associated, frames might
be transmitted during unregistration -- which will crash
if the hwsim%d interface is unregistered first, so only
do that after all the virtual wiphys are gone.

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

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index a111bda392e2..5bed8241f3cc 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -1167,8 +1167,8 @@ static void __exit exit_mac80211_hwsim(void)
 {
 	printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
 
-	unregister_netdev(hwsim_mon);
 	mac80211_hwsim_free();
+	unregister_netdev(hwsim_mon);
 }