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[PATCH] b43: Fix locking problem when stopping rfkill polling

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In commit 26e5ab35b4c7b1d4cb487a11084520aed9a8d05e entitled "b43: Fix PPC
crash in rfkill polling on unload", the call to stop polling should not have
been placed inside the wl->mutex. The result was incorrect locking messages.

Signed-off-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
---

John,

I had not intended for the previous patch to be applied as I was waiting for
the Bugzilla OP to test. He promised to do that today. In any case, that patch
introduced a locking problem that needs to be fixed.

Why do the one-liners cause so many problems?

Larry
---

Index: wireless-testing/drivers/net/wireless/b43/main.c
===================================================================
--- wireless-testing.orig/drivers/net/wireless/b43/main.c
+++ wireless-testing/drivers/net/wireless/b43/main.c
@@ -4501,8 +4501,8 @@ static void b43_op_stop(struct ieee80211
 
 	cancel_work_sync(&(wl->beacon_update_trigger));
 
-	mutex_lock(&wl->mutex);
 	wiphy_rfkill_stop_polling(hw->wiphy);
+	mutex_lock(&wl->mutex);
 	if (b43_status(dev) >= B43_STAT_STARTED) {
 		dev = b43_wireless_core_stop(dev);
 		if (!dev)
--
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