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From: Xu Wang <vulab@iscas.ac.cn>
To: b.zolnierkie@samsung.com, pakki001@umn.edu, yuehaibing@huawei.com
Cc: linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: [PATCH] omapfb/dss: Remove redundant null check before clk_prepare_enable/clk_disable_unprepare
Date: Wed, 14 Oct 2020 08:49:20 +0000	[thread overview]
Message-ID: <20201014084920.25813-1-vulab@iscas.ac.cn> (raw)

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>
---
 drivers/video/fbdev/omap2/omapfb/dss/venc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/dss/venc.c b/drivers/video/fbdev/omap2/omapfb/dss/venc.c
index 0b0ad20afd63..8895fb8493d8 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/venc.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/venc.c
@@ -890,8 +890,7 @@ static int venc_remove(struct platform_device *pdev)
 
 static int venc_runtime_suspend(struct device *dev)
 {
-	if (venc.tv_dac_clk)
-		clk_disable_unprepare(venc.tv_dac_clk);
+	clk_disable_unprepare(venc.tv_dac_clk);
 
 	dispc_runtime_put();
 
@@ -906,8 +905,7 @@ static int venc_runtime_resume(struct device *dev)
 	if (r < 0)
 		return r;
 
-	if (venc.tv_dac_clk)
-		clk_prepare_enable(venc.tv_dac_clk);
+	clk_prepare_enable(venc.tv_dac_clk);
 
 	return 0;
 }
-- 
2.17.1


             reply	other threads:[~2020-10-14  8:56 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-14  8:49 Xu Wang [this message]
2020-10-15  8:08 ` Thomas Zimmermann
2020-10-16  9:53   ` Thomas Zimmermann
2020-10-16  9:53   ` Thomas Zimmermann

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