diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c
index d38673c27ae62ea1cf65b3f0fe81c0afe01b20ed..e8cacaecf9ad7e9e19d2854494c372a7f71d08f6 100644
--- a/drivers/staging/emxx_udc/emxx_udc.c
+++ b/drivers/staging/emxx_udc/emxx_udc.c
@@ -2625,7 +2625,7 @@ static struct usb_request *nbu2ss_ep_alloc_request(
 
 	req = kzalloc(sizeof(*req), gfp_flags);
 	if (!req)
-		return 0;
+		return NULL;
 
 #ifdef USE_DMA
 	req->req.dma = DMA_ADDR_INVALID;