[PATCH] ASoC: ti: davinci-evm: Remove redundant null check before clk_disable_unprepare

[Xu Wang]

Because clk_disable_unprepare() already checked NULL clock parameter,
so the additional check is unnecessary, just remove it.

Signed-off-by: Xu Wang <vulab at iscas.ac.cn>
---
 sound/soc/ti/davinci-evm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/soc/ti/davinci-evm.c b/sound/soc/ti/davinci-evm.c
index 105e56ab9cdc..b043a0070d20 100644
--- a/sound/soc/ti/davinci-evm.c
+++ b/sound/soc/ti/davinci-evm.c
@@ -46,8 +46,7 @@ static void evm_shutdown(struct snd_pcm_substream *substream)
 	struct snd_soc_card_drvdata_davinci *drvdata =
 		snd_soc_card_get_drvdata(soc_card);
 
-	if (drvdata->mclk)
-		clk_disable_unprepare(drvdata->mclk);
+	clk_disable_unprepare(drvdata->mclk);
 }
 
 static int evm_hw_params(struct snd_pcm_substream *substream,
-- 
2.17.1