V4L/DVB (11672): ivtv: use v4l2_device_set_name.

Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/ivtv/ivtv-driver.c

@@ -946,17 +946,14 @@ static int __devinit ivtv_probe(struct pci_dev *pdev,
 	if (itv == NULL)
 		return -ENOMEM;
 	itv->pdev = pdev;
-	itv->instance = atomic_inc_return(&ivtv_instance) - 1;
+	itv->instance = v4l2_device_set_name(&itv->v4l2_dev, "ivtv",
+						&ivtv_instance);
 
 	retval = v4l2_device_register(&pdev->dev, &itv->v4l2_dev);
 	if (retval) {
 		kfree(itv);
 		return retval;
 	}
-	/* "ivtv + PCI ID" is a bit of a mouthful, so use
-	   "ivtv + instance" instead. */
-	snprintf(itv->v4l2_dev.name, sizeof(itv->v4l2_dev.name),
-			"ivtv%d", itv->instance);
 	IVTV_INFO("Initializing card %d\n", itv->instance);
 
 	ivtv_process_options(itv);