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authorXu Wang <vulab@iscas.ac.cn>2020-10-14 08:57:22 +0000
committerThomas Zimmermann <tzimmermann@suse.de>2020-10-16 11:50:31 +0200
commit5988c2695f4074b44049cd77c4482c0748a8d632 (patch)
tree11bf423b9ecab43bc89b4ab10e4b27ce738ac34c /drivers/video
parentf57074189dfc96500b866f522fb7a7b5d21b2c27 (diff)
video: fbdev: sh_mobile_lcdcfb: Remove redundant null check before clk_prepare_enable/clk_disable_unprepare
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 <vulab@iscas.ac.cn> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20201014085722.26069-1-vulab@iscas.ac.cn
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/fbdev/sh_mobile_lcdcfb.c6
1 files 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);
}
}