[PATCH] iio: adc: stm32-dfsdm: Remove redundant null check before clk_disable_unprepare

[Xu Wang]

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

Signed-off-by: Xu Wang <vu...@iscas.ac.cn>
---
 drivers/iio/adc/stm32-dfsdm-core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iio/adc/stm32-dfsdm-core.c 
b/drivers/iio/adc/stm32-dfsdm-core.c
index 42a7377704a4..bb925a11c8ae 100644
--- a/drivers/iio/adc/stm32-dfsdm-core.c
+++ b/drivers/iio/adc/stm32-dfsdm-core.c
@@ -117,8 +117,7 @@ static void stm32_dfsdm_clk_disable_unprepare(struct 
stm32_dfsdm *dfsdm)
 {
        struct dfsdm_priv *priv = to_stm32_dfsdm_priv(dfsdm);
 
-       if (priv->aclk)
-               clk_disable_unprepare(priv->aclk);
+       clk_disable_unprepare(priv->aclk);
        clk_disable_unprepare(priv->clk);
 }
 
-- 
2.17.1