diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c
index 6559b606736d8dcf72606ee3265bc686171c706a..3ebd6522a1fd1905963088a310a425c2ec8c2516 100644
--- a/drivers/ata/pata_mpc52xx.c
+++ b/drivers/ata/pata_mpc52xx.c
@@ -731,7 +731,7 @@ static int mpc52xx_ata_probe(struct platform_device *op)
 		udma_mask = ATA_UDMA2 & ((1 << (*prop + 1)) - 1);
 
 	ata_irq = irq_of_parse_and_map(op->dev.of_node, 0);
-	if (ata_irq == NO_IRQ) {
+	if (!ata_irq) {
 		dev_err(&op->dev, "error mapping irq\n");
 		return -EINVAL;
 	}