[PATCH] ASoC: fix simple_return.cocci warnings

[kbuild test robot]

sound/soc/codecs/adau1977.c:496:5-8: WARNING: end returns can be simpified

 Simplify a trivial if-return sequence.  Possibly combine with a
 preceding function call.
Generated by: scripts/coccinelle/misc/simple_return.cocci

CC: Lars-Peter Clausen <lars@xxxxxxxxxx>
Signed-off-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
---

 adau1977.c |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/sound/soc/codecs/adau1977.c
+++ b/sound/soc/codecs/adau1977.c
@@ -493,10 +493,7 @@ static int adau1977_set_bias_level(struc
 		break;
 	}
 
-	if (ret)
-		return ret;
-
-	return 0;
+	return ret;
 }
 
 static int adau1977_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
--
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