| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.18 077/145] mac80211: flush delayed work when entering suspend | Date | Sun, 16 Apr 2017 12:49:30 +0200 |
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3.18-stable review patch. If anyone has any objections, please let me know.
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From: Matt Chen <matt.chen@intel.com>
commit a9e9200d8661c1a0be8c39f93deb383dc940de35 upstream.
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.
Signed-off-by: Matt Chen <matt.chen@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- net/mac80211/pm.c | 1 + 1 file changed, 1 insertion(+)
--- a/net/mac80211/pm.c +++ b/net/mac80211/pm.c @@ -116,6 +116,7 @@ int __ieee80211_suspend(struct ieee80211 break; } + flush_delayed_work(&sdata->dec_tailroom_needed_wk); drv_remove_interface(local, sdata); }
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