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mac80211: use del_timer_sync for final sta cleanup timer deletion

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This is a very old bug, but there's nothing that prevents the
timer from running while the module is being removed when we
only do del_timer() instead of del_timer_sync().

The timer should normally not be running at this point, but
it's not clearly impossible (or we could just remove this.)

Cc: stable@vger.kernel.org
Tested-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2012-12-13 23:08:52 +01:00
parent 97f97b1f5f
commit a56f992cda
1 changed files with 1 additions and 1 deletions
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2
net/mac80211/sta_info.c
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@ -884,7 +884,7 @@ void sta_info_init(struct ieee80211_local *local)
void sta_info_stop(struct ieee80211_local *local)
{
del_timer(&local->sta_cleanup);
del_timer_sync(&local->sta_cleanup);
sta_info_flush(local, NULL);
}