diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c
index 85b0d89..d9195dc 100644
--- a/drivers/usb/gadget/pxa27x_udc.c
+++ b/drivers/usb/gadget/pxa27x_udc.c
@@ -2384,6 +2384,9 @@ static irqreturn_t pxa_udc_irq(int irq, void *_dev)
 	dev_vdbg(udc->dev, "Interrupt, UDCISR0:0x%08x, UDCISR1:0x%08x, "
 		 "UDCCR:0x%08x\n", udcisr0, udcisr1, udccr);
 
+	if (!udc->driver)
+		return IRQ_HANDLED;
+
 	udcisr1_spec = udcisr1 & 0xf8000000;
 	if (unlikely(udcisr1_spec & UDCISR1_IRSU))
 		irq_udc_suspend(udc);
@@ -2506,6 +2509,7 @@ static int __init pxa_udc_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, udc);
 	udc_init_data(udc);
 	pxa_eps_setup(udc);
+	dplus_pullup(udc, 0);
 
 	/* irq setup after old hardware state is cleaned up */
 	retval = request_irq(udc->irq, pxa_udc_irq,