linux-kernel - [PATCH 1/1] ASoC: fsi: Deletion of unnecessary checks before the function call "clk

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Message-ID: <547DC19B.5080302@users.sourceforge.net>
Date:	Tue, 02 Dec 2014 14:41:47 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Jaroslav Kysela <perex@...ex.cz>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>, Takashi Iwai <tiwai@...e.de>,
	alsa-devel@...a-project.org
CC:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH 1/1] ASoC: fsi: Deletion of unnecessary checks before the
 function call "clk_disable"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 2 Dec 2014 14:34:30 +0100

The clk_disable() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 sound/soc/sh/fsi.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c
index 88e5df4..8869971 100644
--- a/sound/soc/sh/fsi.c
+++ b/sound/soc/sh/fsi.c
@@ -842,12 +842,9 @@ static int fsi_clk_disable(struct device *dev,
 		return -EINVAL;
 
 	if (1 == clock->count--) {
-		if (clock->xck)
-			clk_disable(clock->xck);
-		if (clock->ick)
-			clk_disable(clock->ick);
-		if (clock->div)
-			clk_disable(clock->div);
+		clk_disable(clock->xck);
+		clk_disable(clock->ick);
+		clk_disable(clock->div);
 	}
 
 	return 0;
-- 
2.1.3

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