iio: frequency: adf4350: Remove redundant null check before clk_disable_unprepare

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

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Link: https://lore.kernel.org/r/20201218094647.1386-1-vulab@iscas.ac.cn
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c
index 82c050a3899d9f4f2558339979fd0ec7df7c6680..1462a6a5bc6dad73ea2157f0fc9dcfee521047f5 100644 (file)
--- a/drivers/iio/frequency/adf4350.c
+++ b/drivers/iio/frequency/adf4350.c
@@ -582,8 +582,7 @@ error_disable_reg:
        if (!IS_ERR(st->reg))
                regulator_disable(st->reg);
 error_disable_clk:
-       if (clk)
-               clk_disable_unprepare(clk);
+       clk_disable_unprepare(clk);
 
        return ret;
 }
@@ -599,8 +598,7 @@ static int adf4350_remove(struct spi_device *spi)
 
        iio_device_unregister(indio_dev);
 
-       if (st->clk)
-               clk_disable_unprepare(st->clk);
+       clk_disable_unprepare(st->clk);
 
        if (!IS_ERR(reg))
                regulator_disable(reg);