commit aef00c15b8c503083a703900a755fdb1cf2436e0
author Koen Zandberg <koen@bergzand.net> Wed Feb 10 11:49:38 2016 +0100
committer Marcel Holtmann <marcel@holtmann.org> Tue Feb 23 20:29:40 2016 +0100
tree a55e5a8aaca24cd8a7eab610970d8fdf82e6a9ef
parent 6367551f462a3c1e2f38f5ea7335e49443379ab2

mac802154: Fixes kernel oops when unloading a radio driver

Destroying the workqueue before unregistering the net device caused a
kernel oops

Signed-off-by: Koen Zandberg <koen@bergzand.net>
Acked-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/mac802154/main.c

diff --git a/net/mac802154/main.c b/net/mac802154/main.c
index e8cab5b..87da85a 100644
--- a/net/mac802154/main.c
+++ b/net/mac802154/main.c
@@ -218,7 +218,6 @@
 
 	tasklet_kill(&local->tasklet);
 	flush_workqueue(local->workqueue);
-	destroy_workqueue(local->workqueue);
 
 	rtnl_lock();
 
@@ -226,6 +225,7 @@
 
 	rtnl_unlock();
 
+	destroy_workqueue(local->workqueue);
 	wpan_phy_unregister(local->phy);
 }
 EXPORT_SYMBOL(ieee802154_unregister_hw);