linux-kernel - [PATCH 1/1] SPI-txx9: Deletion of an unnecessary check before the function call "clk

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Date:	Sat, 29 Nov 2014 18:40:28 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Mark Brown <broonie@...nel.org>, linux-spi@...r.kernel.org
CC:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH 1/1] SPI-txx9: Deletion of an unnecessary check before the
 function call "clk_disable"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 29 Nov 2014 18:34:20 +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>
---
 drivers/spi/spi-txx9.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/spi/spi-txx9.c b/drivers/spi/spi-txx9.c
index 0da7c67..9190124 100644
--- a/drivers/spi/spi-txx9.c
+++ b/drivers/spi/spi-txx9.c
@@ -402,8 +402,7 @@ exit_busy:
 exit:
 	if (c->workqueue)
 		destroy_workqueue(c->workqueue);
-	if (c->clk)
-		clk_disable(c->clk);
+	clk_disable(c->clk);
 	spi_master_put(master);
 	return ret;
 }
-- 
2.1.3

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