diff --git a/tools/pci/pcitest.c b/tools/pci/pcitest.c
index 8ca1c62bc06d..7002df55826f 100644
--- a/tools/pci/pcitest.c
+++ b/tools/pci/pcitest.c
@@ -42,15 +42,15 @@ struct pci_test {
 	unsigned long	size;
 };
 
-static void run_test(struct pci_test *test)
+static int run_test(struct pci_test *test)
 {
-	long ret;
+	int ret = -EINVAL;
 	int fd;
 
 	fd = open(test->device, O_RDWR);
 	if (fd < 0) {
 		perror("can't open PCI Endpoint Test device");
-		return;
+		return -ENODEV;
 	}
 
 	if (test->barnum >= 0 && test->barnum <= 5) {