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@xxxxxxxxx>
---
net/mac80211/pm.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index af1c4e2..98c128b 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);
--
1.7.9.5
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