diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 47d233c..5d39df1 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -567,7 +567,12 @@
 			num_cntlrs_reg++;
 	}
 
-	return(num_cntlrs_reg);
+	if (num_cntlrs_reg)
+		return 0;
+	else {
+		pci_unregister_driver(&cpqarray_pci_driver);
+		return -ENODEV;
+	}
 }
 
 /* Function to find the first free pointer into our hba[] array */