diff --git a/drivers/pci/htirq.c b/drivers/pci/htirq.c
index 7c5aef1..7b180e0 100644
--- a/drivers/pci/htirq.c
+++ b/drivers/pci/htirq.c
@@ -144,7 +144,7 @@
 #else
 	irq = create_irq();
 #endif
-	if (irq == 0) {
+	if (irq <= 0) {
 		kfree(cfg);
 		return -EBUSY;
 	}