[PATCH V2] ASoC: imx-audmux: remove unnecessary check of clk_disable_unprepare/clk_prepare_enable

[cgel . zte]

From: Minghao Chi <chi.ming...@zte.com.cn>

Because clk_disable_unprepare/clk_prepare_enable already checked NULL clock
parameter, so the additional checks are unnecessary, just remove them.

Reported-by: Zeal Robot <zea...@zte.com.cn>
Signed-off-by: Minghao Chi <chi.ming...@zte.com.cn>
---
v1->v2:
        remove the check of audmux_clk before "clk_prepare_enable"
 sound/soc/fsl/imx-audmux.c | 22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)

diff --git a/sound/soc/fsl/imx-audmux.c b/sound/soc/fsl/imx-audmux.c
index dfa05d40b276..3ba82adace42 100644
--- a/sound/soc/fsl/imx-audmux.c
+++ b/sound/soc/fsl/imx-audmux.c
@@ -62,17 +62,14 @@ static ssize_t audmux_read_file(struct file *file, char 
__user *user_buf,
        uintptr_t port = (uintptr_t)file->private_data;
        u32 pdcr, ptcr;
 
-       if (audmux_clk) {
-               ret = clk_prepare_enable(audmux_clk);
-               if (ret)
-                       return ret;
-       }
+       ret = clk_prepare_enable(audmux_clk);
+       if (ret)
+               return ret;
 
        ptcr = readl(audmux_base + IMX_AUDMUX_V2_PTCR(port));
        pdcr = readl(audmux_base + IMX_AUDMUX_V2_PDCR(port));
 
-       if (audmux_clk)
-               clk_disable_unprepare(audmux_clk);
+       clk_disable_unprepare(audmux_clk);
 
        buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
        if (!buf)
@@ -209,17 +206,14 @@ int imx_audmux_v2_configure_port(unsigned int port, 
unsigned int ptcr,
        if (!audmux_base)
                return -ENOSYS;
 
-       if (audmux_clk) {
-               ret = clk_prepare_enable(audmux_clk);
-               if (ret)
-                       return ret;
-       }
+       ret = clk_prepare_enable(audmux_clk);
+       if (ret)
+               return ret;
 
        writel(ptcr, audmux_base + IMX_AUDMUX_V2_PTCR(port));
        writel(pdcr, audmux_base + IMX_AUDMUX_V2_PDCR(port));
 
-       if (audmux_clk)
-               clk_disable_unprepare(audmux_clk);
+       clk_disable_unprepare(audmux_clk);
 
        return 0;
 }
-- 
2.25.1