3c59x: fix regression from patch "Add ethtool WOL support"

[net-next-2.6.git] / drivers / net / 3c59x.c

diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c
index 85671adae455dc59bd29405aa2b196e5b0ebd9c2..179871d9e71f9a1f111645f58c68b7fea55b0861 100644 (file)
--- a/drivers/net/3c59x.c
+++ b/drivers/net/3c59x.c
@@ -635,6 +635,9 @@ struct vortex_private {
                must_free_region:1,                             /* Flag: if zero, Cardbus owns the I/O region */
                large_frames:1,                 /* accept large frames */
                handling_irq:1;                 /* private in_irq indicator */
+       /* {get|set}_wol operations are already serialized by rtnl.
+        * no additional locking is required for the enable_wol and acpi_set_WOL()
+        */
        int drv_flags;
        u16 status_enable;
        u16 intr_enable;
@@ -2939,28 +2942,31 @@ static void vortex_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 {
        struct vortex_private *vp = netdev_priv(dev);
 
-       spin_lock_irq(&vp->lock);
+       if (!VORTEX_PCI(vp))
+               return;
+
        wol->supported = WAKE_MAGIC;
 
        wol->wolopts = 0;
        if (vp->enable_wol)
                wol->wolopts |= WAKE_MAGIC;
-       spin_unlock_irq(&vp->lock);
 }
 
 static int vortex_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 {
        struct vortex_private *vp = netdev_priv(dev);
+
+       if (!VORTEX_PCI(vp))
+               return -EOPNOTSUPP;
+
        if (wol->wolopts & ~WAKE_MAGIC)
                return -EINVAL;
 
-       spin_lock_irq(&vp->lock);
        if (wol->wolopts & WAKE_MAGIC)
                vp->enable_wol = 1;
        else
                vp->enable_wol = 0;
        acpi_set_WOL(dev);
-       spin_unlock_irq(&vp->lock);
 
        return 0;
 }
@@ -3202,6 +3208,9 @@ static void acpi_set_WOL(struct net_device *dev)
                        return;
                }
 
+               if (VORTEX_PCI(vp)->current_state < PCI_D3hot)
+                       return;
+
                /* Change the power state to D3; RxEnable doesn't take effect. */
                pci_set_power_state(VORTEX_PCI(vp), PCI_D3hot);
        }