V4L/DVB (7693): pvrusb2-dvb: Change usage of 0 --> NULL

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/pvrusb2/pvrusb2-dvb.c

@@ -405,7 +405,7 @@ struct pvr2_dvb_adapter *pvr2_dvb_create(struct pvr2_context *pvr)
 	if (!pvr->hdw->hdw_desc->dvb_props) {
 		/* Device lacks a digital interface so don't set up
 		   the DVB side of the driver either.  For now. */
-		return 0;
+		return NULL;
 	}
 	adap = kzalloc(sizeof(*adap), GFP_KERNEL);
 	if (!adap) return adap;