gianfar: Do not call device_set_wakeup_enable() under a spinlock

The gianfar driver calls device_set_wakeup_enable() under a spinlock,
which causes a problem to happen after the recent core power
management changes, because this function can sleep now.  Fix this
by moving the device_set_wakeup_enable() call out of the
spinlock-protected area.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/net/gianfar_ethtool.c b/drivers/net/gianfar_ethtool.c
index 5c566ebc54b8..3bc8e276ba4d 100644
--- a/drivers/net/gianfar_ethtool.c
+++ b/drivers/net/gianfar_ethtool.c
@@ -635,9 +635,10 @@ static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
         if (wol->wolopts & ~WAKE_MAGIC)
                 return -EINVAL;
 
+        device_set_wakeup_enable(&dev->dev, wol->wolopts & WAKE_MAGIC);
+
         spin_lock_irqsave(&priv->bflock, flags);
-        priv->wol_en = wol->wolopts & WAKE_MAGIC ? 1 : 0;
-        device_set_wakeup_enable(&dev->dev, priv->wol_en);
+        priv->wol_en =  !!device_may_wakeup(&dev->dev);
         spin_unlock_irqrestore(&priv->bflock, flags);
 
         return 0;