From: Michael Büsch <mb@bu3sch.de>
Date: Wed, 16 Nov 2011 22:45:23 +0000 (+0000)
Subject: p54spi: workqueue deadlock fix
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=e12543a1d7035bd90b7b3ac19e12f63c6423ecdb;p=openwrt%2Fstaging%2Fwigyori.git

p54spi: workqueue deadlock fix

SVN-Revision: 29202
---

diff --git a/package/mac80211/patches/852-p54spi-cancel-workqueue-fix.patch b/package/mac80211/patches/852-p54spi-cancel-workqueue-fix.patch
new file mode 100644
index 0000000000..c5302931e0
--- /dev/null
+++ b/package/mac80211/patches/852-p54spi-cancel-workqueue-fix.patch
@@ -0,0 +1,22 @@
+Index: compat-wireless-2011-11-04/drivers/net/wireless/p54/p54spi.c
+===================================================================
+--- compat-wireless-2011-11-04.orig/drivers/net/wireless/p54/p54spi.c	2011-11-16 23:36:01.399952345 +0100
++++ compat-wireless-2011-11-04/drivers/net/wireless/p54/p54spi.c	2011-11-16 23:37:38.799547564 +0100
+@@ -584,8 +584,6 @@ static void p54spi_op_stop(struct ieee80
+ 	mutex_lock(&priv->mutex);
+ 	WARN_ON(priv->fw_state != FW_STATE_READY);
+ 
+-	cancel_work_sync(&priv->work);
+-
+ 	p54spi_power_off(priv);
+ 	spin_lock_irqsave(&priv->tx_lock, flags);
+ 	INIT_LIST_HEAD(&priv->tx_pending);
+@@ -593,6 +591,8 @@ static void p54spi_op_stop(struct ieee80
+ 
+ 	priv->fw_state = FW_STATE_OFF;
+ 	mutex_unlock(&priv->mutex);
++
++	cancel_work_sync(&priv->work);
+ }
+ 
+ static int __devinit p54spi_probe(struct spi_device *spi)