[PATCH] video: fbdev: sh_mobile_lcdcfb: Remove redundant null check before clk_prepare_enable/clk_disable_unprepare

[Xu Wang]

Because 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 <vu...@iscas.ac.cn>
---
 drivers/video/fbdev/sh_mobile_lcdcfb.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/video/fbdev/sh_mobile_lcdcfb.c 
b/drivers/video/fbdev/sh_mobile_lcdcfb.c
index c1043420dbd3..c0952cc96bdb 100644
--- a/drivers/video/fbdev/sh_mobile_lcdcfb.c
+++ b/drivers/video/fbdev/sh_mobile_lcdcfb.c
@@ -341,8 +341,7 @@ static void lcdc_wait_bit(struct sh_mobile_lcdc_priv *priv,
 static void sh_mobile_lcdc_clk_on(struct sh_mobile_lcdc_priv *priv)
 {
        if (atomic_inc_and_test(&priv->hw_usecnt)) {
-               if (priv->dot_clk)
-                       clk_prepare_enable(priv->dot_clk);
+               clk_prepare_enable(priv->dot_clk);
                pm_runtime_get_sync(priv->dev);
        }
 }
@@ -351,8 +350,7 @@ static void sh_mobile_lcdc_clk_off(struct 
sh_mobile_lcdc_priv *priv)
 {
        if (atomic_sub_return(1, &priv->hw_usecnt) == -1) {
                pm_runtime_put(priv->dev);
-               if (priv->dot_clk)
-                       clk_disable_unprepare(priv->dot_clk);
+               clk_disable_unprepare(priv->dot_clk);
        }
 }
 
-- 
2.17.1