diff --git a/drivers/pci/irq.c b/drivers/pci/irq.c
index 12ecd0aaa28d6dbd331f2da7c8aaae4c3ffe22da..0050e8f6814ed655ee06a87252ed468d22963722 100644
--- a/drivers/pci/irq.c
+++ b/drivers/pci/irq.c
@@ -44,6 +44,8 @@ int pci_request_irq(struct pci_dev *dev, unsigned int nr, irq_handler_t handler,
 	va_start(ap, fmt);
 	devname = kvasprintf(GFP_KERNEL, fmt, ap);
 	va_end(ap);
+	if (!devname)
+		return -ENOMEM;
 
 	ret = request_threaded_irq(pci_irq_vector(dev, nr), handler, thread_fn,
 				   irqflags, devname, dev_id);