diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c
index e27d471cc847..d1e2f22537db 100644
--- a/drivers/misc/pci_endpoint_test.c
+++ b/drivers/misc/pci_endpoint_test.c
@@ -728,6 +728,10 @@ static long pci_endpoint_test_ioctl(struct file *file, unsigned int cmd,
 	struct pci_dev *pdev = test->pdev;
 
 	mutex_lock(&test->mutex);
+
+	reinit_completion(&test->irq_raised);
+	test->last_irq = -ENODATA;
+
 	switch (cmd) {
 	case PCITEST_BAR:
 		bar = arg;