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Message-Id: <11998765481610-git-send-email-joonwpark81@gmail.com>
Date: Wed, 9 Jan 2008 20:02:28 +0900
From: Joonwoo Park <joonwpark81@...il.com>
To: Zhu Yi <yi.zhu@...el.com>, netdev@...r.kernel.org
Cc: lkml <linux-kernel@...r.kernel.org>,
ipw3945-devel@...ts.sourceforge.net,
linux-wireless@...r.kernel.org,
Joonwoo Park <joonwpark81@...il.com>
Subject: [PATCH 2/5] iwlwifi: iwl3945 synchronize interrupt and tasklet for down iwlwifi
After disabling interrupts, it's possible irq & tasklet is pending or running
This patch eleminates races for down iwlwifi
Signed-off-by: Joonwoo Park <joonwpark81@...il.com>
---
drivers/net/wireless/iwlwifi/iwl3945-base.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index c97448d..3986aaf 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -6262,6 +6262,10 @@ static void __iwl_down(struct iwl_priv *priv)
/* tell the device to stop sending interrupts */
iwl_disable_interrupts(priv);
+ /* synchronize irq and tasklet */
+ synchronize_irq(priv->pci_dev->irq);
+ tasklet_kill(&priv->irq_tasklet);
+
if (priv->mac80211_registered)
ieee80211_stop_queues(priv->hw);
--
1.5.3.rc5
--
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