From: Johannes Berg <johannes.berg@xxxxxxxxx>
Since my commit 34e895075e21be3e21e71d6317440d1ee7969ad0
("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@xxxxxxxxxx [2.6.34+]
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
net/mac80211/sta_info.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/mac80211/sta_info.c 2011-09-06 12:46:20.000000000 +0200
+++ b/net/mac80211/sta_info.c 2011-09-06 12:46:21.000000000 +0200
@@ -796,7 +796,7 @@ static int __must_check __sta_info_destr
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--;
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
