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mac80211: fix missing sta_lock in __sta_info_destroy 

Since my commit 34e895075e
("mac80211: allow station add/remove to sleep") there is
a race in mac80211 when it clears the TIM bit because a
sleeping station disconnected, the spinlock isn't held
around the relevant code any more. Use the right API to
acquire the spinlock correctly.

Cc: stable@kernel.org [2.6.34+]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2011-09-06 12:47:39 +02:00 committed by John W. Linville
parent bac2555c6d
commit 4bae7d9769
1 changed files with 1 additions and 1 deletions
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2
net/mac80211/sta_info.c
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@ -665,7 +665,7 @@ static int __must_check __sta_info_destroy(struct sta_info *sta)
BUG_ON(!sdata->bss);
atomic_dec(&sdata->bss->num_sta_ps);
__sta_info_clear_tim_bit(sdata->bss, sta);
sta_info_clear_tim_bit(sta);
}
local->num_sta--;