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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>
This commit is contained in:
Pontus Fuchs 2012-05-31 12:34:47 +02:00 committed by John W. Linville
parent 8c06e8c08e
commit 3b08cf6bd2
1 changed files with 1 additions and 0 deletions
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1
net/mac80211/pm.c
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@ -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);