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mac80211: flush delayed work when entering suspend

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The issue was found when entering suspend and resume.
It triggers a warning in:
mac80211/key.c: ieee80211_enable_keys()
...
WARN_ON_ONCE(sdata->crypto_tx_tailroom_needed_cnt ||
             sdata->crypto_tx_tailroom_pending_dec);
...

It points out sdata->crypto_tx_tailroom_pending_dec isn't cleaned up successfully
in a delayed_work during suspend. Add a flush_delayed_work to fix it.

Cc: stable@vger.kernel.org
Signed-off-by: Matt Chen <matt.chen@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Matt Chen 2017-01-22 02:16:58 +08:00 committed by Johannes Berg
parent 0328edc77d
commit a9e9200d86
1 changed files with 1 additions and 0 deletions
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1
net/mac80211/pm.c
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@ -168,6 +168,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
break;
}
flush_delayed_work(&sdata->dec_tailroom_needed_wk);
drv_remove_interface(local, sdata);
}