Build fixes for struct pt_regs removal

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
diff --git a/drivers/net/lasi_82596.c b/drivers/net/lasi_82596.c
index 8cbd940..f4d815b 100644
--- a/drivers/net/lasi_82596.c
+++ b/drivers/net/lasi_82596.c
@@ -1252,7 +1252,7 @@
 static void i596_poll_controller(struct net_device *dev)
 {
 	disable_irq(dev->irq);
-	i596_interrupt(dev->irq, dev, NULL);
+	i596_interrupt(dev->irq, dev);
 	enable_irq(dev->irq);
 }
 #endif