linux-kernel - [PATCH] of: Delete an unnecessary check before the function call "of_node

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Message-ID: <8db62ad3-2e8a-327e-30a8-594f628cd8be@users.sourceforge.net>
Date:	Tue, 19 Jul 2016 22:52:12 +0200
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	devicetree@...r.kernel.org, Frank Rowand <frowand.list@...il.com>,
	Rob Herring <robh+dt@...nel.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] of: Delete an unnecessary check before the function call
 "of_node_put"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 19 Jul 2016 22:42:22 +0200

The of_node_put() 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/of/base.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/of/base.c b/drivers/of/base.c
index a4b6087..2601167 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1609,8 +1609,7 @@ static int __of_parse_phandle_with_args(const struct device_node *np,
 	 */
 
  err:
-	if (it.node)
-		of_node_put(it.node);
+	of_node_put(it.node);
 	return rc;
 }
 
-- 
2.9.2