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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
This commit is contained in:
Xu Wang 2020-10-14 08:57:22 +00:00 committed by Thomas Zimmermann
parent f57074189d
commit 5988c2695f
1 changed files with 2 additions and 4 deletions
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6
drivers/video/fbdev/sh_mobile_lcdcfb.c
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@ -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);
}
}