linux-kernel - [PATCH] staging: gdm72xx: Deletion of an unnecessary check before the function call "kfree"

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Message-ID: <54CE659D.5010607@users.sourceforge.net>
Date:	Sun, 01 Feb 2015 18:42:53 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	devel@...verdev.osuosl.org
CC:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] staging: gdm72xx: Deletion of an unnecessary check before
 the function call "kfree"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sun, 1 Feb 2015 18:28:33 +0100

The kfree() 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/staging/gdm72xx/gdm_wimax.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/gdm72xx/gdm_wimax.c b/drivers/staging/gdm72xx/gdm_wimax.c
index 9cab54b..ac901e6 100644
--- a/drivers/staging/gdm72xx/gdm_wimax.c
+++ b/drivers/staging/gdm72xx/gdm_wimax.c
@@ -362,7 +362,7 @@ static int gdm_wimax_close(struct net_device *dev)
 
 static void kdelete(void **buf)
 {
-	if (buf && *buf) {
+	if (buf) {
 		kfree(*buf);
 		*buf = NULL;
 	}
-- 
2.2.2

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