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rt2x00: Sequence counter should be protected in irqsave

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The sequence counter can be accessed in IRQ context,
which means the lock protecting the counter should
be irqsave. To prevent making the entire intf->lock irqsave
without reason, create a new lock which only protects
the sequence counter.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ivo van Doorn
2008-07-28 10:21:16 +02:00
committed by John W. Linville
parent 8d8acd46fb
commit d4764b29b6
3 changed files with 10 additions and 2 deletions
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1
drivers/net/wireless/rt2x00/rt2x00mac.c
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@@ -247,6 +247,7 @@ int rt2x00mac_add_interface(struct ieee80211_hw *hw,
rt2x00dev->intf_sta_count++;
spin_lock_init(&intf->lock);
spin_lock_init(&intf->seqlock);
intf->beacon = entry;
if (conf->type == IEEE80211_IF_TYPE_AP)