[PATCH] ipw2200 locking fix

Well, this is not 100% if when the card fires two consecutive
interrupts. Though unlikely, it's better to protect early than seeing
some "weird" bugs one day. I proposed attached patch. If you can help to
test, that will be appreciated (I cannot see the lockdep warning on my
box somehow).

Cc: Frederik Deweerdt <deweerdt@free.fr>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/net/wireless/ipw2200.h b/drivers/net/wireless/ipw2200.h
index 6044c0be2c80..ea12ad66b8e8 100644
--- a/drivers/net/wireless/ipw2200.h
+++ b/drivers/net/wireless/ipw2200.h
@@ -1173,6 +1173,7 @@ struct ipw_priv {
         struct ieee80211_device *ieee;
 
         spinlock_t lock;
+        spinlock_t irq_lock;
         struct mutex mutex;
 
         /* basic pci-network driver stuff */