orinoco: fix unsafe locking in spectrum_cs_suspend

A similar problem was highlighted in the orinoco_cs driver by lockdep.
This patch fixes the spectrum_cs driver.

Signed-off-by: David Kilroy <kilroyd@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/net/wireless/spectrum_cs.c b/drivers/net/wireless/spectrum_cs.c
index 67b26d3c3cd..f5513cd4db3 100644
--- a/drivers/net/wireless/spectrum_cs.c
+++ b/drivers/net/wireless/spectrum_cs.c
@@ -450,10 +450,11 @@ spectrum_cs_suspend(struct pcmcia_device *link)
 {
         struct net_device *dev = link->priv;
         struct orinoco_private *priv = netdev_priv(dev);
+        unsigned long flags;
         int err = 0;
 
         /* Mark the device as stopped, to block IO until later */
-        spin_lock(&priv->lock);
+        spin_lock_irqsave(&priv->lock, flags);
 
         err = __orinoco_down(dev);
         if (err)
@@ -463,7 +464,7 @@ spectrum_cs_suspend(struct pcmcia_device *link)
         netif_device_detach(dev);
         priv->hw_unavailable++;
 
-        spin_unlock(&priv->lock);
+        spin_unlock_irqrestore(&priv->lock, flags);
 
         return err;
 }