ASoC: cs42l73: Show correct revision id

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/cs42l73.c b/sound/soc/codecs/cs42l73.c
index fdd8aa2..1b773bf 100644
--- a/sound/soc/codecs/cs42l73.c
+++ b/sound/soc/codecs/cs42l73.c
@@ -1383,7 +1383,7 @@
 	}
 
 	dev_info(&i2c_client->dev,
-		 "Cirrus Logic CS42L73, Revision: %02X\n", ret & 0xFF);
+		 "Cirrus Logic CS42L73, Revision: %02X\n", reg & 0xFF);
 
 	regcache_cache_only(cs42l73->regmap, true);