diff --git a/drivers/media/usb/zr364xx/zr364xx.c b/drivers/media/usb/zr364xx/zr364xx.c
index b8886102c5ed6325b6ef36eddc34bca80e1a5859..501030bb2e7d02d0db41191eadab758c6feb6fa5 100644
--- a/drivers/media/usb/zr364xx/zr364xx.c
+++ b/drivers/media/usb/zr364xx/zr364xx.c
@@ -703,7 +703,8 @@ static int zr364xx_vidioc_querycap(struct file *file, void *priv,
 	struct zr364xx_camera *cam = video_drvdata(file);
 
 	strlcpy(cap->driver, DRIVER_DESC, sizeof(cap->driver));
-	strlcpy(cap->card, cam->udev->product, sizeof(cap->card));
+	if (cam->udev->product)
+		strlcpy(cap->card, cam->udev->product, sizeof(cap->card));
 	strlcpy(cap->bus_info, dev_name(&cam->udev->dev),
 		sizeof(cap->bus_info));
 	cap->device_caps = V4L2_CAP_VIDEO_CAPTURE |