From 3b08cf6bd2763bfe9d04fad4d7de29ee7735cd76 Mon Sep 17 00:00:00 2001
From: Pontus Fuchs <pontus.fuchs@gmail.com>
Date: Thu, 31 May 2012 12:34:47 +0200
Subject: [PATCH] mac80211: Clear wowlan flag when drv_suspend returns failure

drv_resume can get called without a prior call to drv_suspend.
Consider the following steps:

1. Suspend is started but driver's drv_suspend returns error.
2. Suspend is aborted. local->wowlan flag is left set.
3. Interface is removed.
4. Suspend again. This time open_count is 0 so drv_suspend is
   not called and local->wowlan not cleared.
5. On resume ieee80211_reconfig will call drv_resume since
   local->wowlan is set.

Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 net/mac80211/pm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index af1c4e26e965..98c128be3827 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -77,6 +77,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 		int err = drv_suspend(local, wowlan);
 		if (err < 0) {
 			local->quiescing = false;
+			local->wowlan = false;
 			return err;
 		} else if (err > 0) {
 			WARN_ON(err != 1);
-- 
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