ASoC: pxa: pxa-ssp: Remove redundant null check before clk_prepare_enable/clk_disable...

ecause clk_prepare_enable() and clk_disable_unprepare() already checked
NULL clock parameter, so the additional checks are unnecessary, just
remove them.

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Link: https://lore.kernel.org/r/20201029090104.29552-1-vulab@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c
index c4e7307..b941adc 100644 (file)
--- a/sound/soc/pxa/pxa-ssp.c
+++ b/sound/soc/pxa/pxa-ssp.c
@@ -99,8 +99,7 @@ static int pxa_ssp_startup(struct snd_pcm_substream *substream,
                pxa_ssp_disable(ssp);
        }
 
-       if (priv->extclk)
-               clk_prepare_enable(priv->extclk);
+       clk_prepare_enable(priv->extclk);
 
        dma = kzalloc(sizeof(struct snd_dmaengine_dai_dma_data), GFP_KERNEL);
        if (!dma)
@@ -124,8 +123,7 @@ static void pxa_ssp_shutdown(struct snd_pcm_substream *substream,
                clk_disable_unprepare(ssp->clk);
        }
 
-       if (priv->extclk)
-               clk_disable_unprepare(priv->extclk);
+       clk_disable_unprepare(priv->extclk);
 
        kfree(snd_soc_dai_get_dma_data(cpu_dai, substream));
        snd_soc_dai_set_dma_data(cpu_dai, substream, NULL);