V4L/DVB (10382): gspca - t613: Bad returned value when no known sensor found.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/gspca/t613.c

@@ -694,7 +694,7 @@ static int sd_init(struct gspca_dev *gspca_dev)
 		break;
 	default:
 		PDEBUG(D_CONF, "unknown sensor %04x", sensor_id);
-		return -1;
+		return -EINVAL;
 	}
 
 	if (sd->sensor != SENSOR_OTHER) {