diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c
index 8c4b93be333b..1bdf69985c13 100644
--- a/drivers/net/ethernet/davicom/dm9000.c
+++ b/drivers/net/ethernet/davicom/dm9000.c
@@ -1291,6 +1291,9 @@ dm9000_open(struct net_device *dev)
 	/* If there is no IRQ type specified, default to something that
 	 * may work, and tell the user that this is a problem */
 
+	if (irqflags == IRQF_TRIGGER_NONE)
+		irqflags = irq_get_trigger_type(dev->irq);
+
 	if (irqflags == IRQF_TRIGGER_NONE)
 		dev_warn(db->dev, "WARNING: no IRQ resource flags set.\n");