linux-kernel - [PATCH] PowerPC-rheap: Delete an unnecessary check before the function call "kfree"

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Message-ID: <54D0CF65.50107@users.sourceforge.net>
Date:	Tue, 03 Feb 2015 14:38:45 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Michael Ellerman <mpe@...erman.id.au>,
	Paul Mackerras <paulus@...ba.org>,
	linuxppc-dev@...ts.ozlabs.org
CC:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] PowerPC-rheap: Delete an unnecessary check before the function
 call "kfree"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 3 Feb 2015 14:34:10 +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>
---
 arch/powerpc/lib/rheap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/lib/rheap.c b/arch/powerpc/lib/rheap.c
index a1060a8..69abf84 100644
--- a/arch/powerpc/lib/rheap.c
+++ b/arch/powerpc/lib/rheap.c
@@ -284,7 +284,7 @@ EXPORT_SYMBOL_GPL(rh_create);
  */
 void rh_destroy(rh_info_t * info)
 {
-	if ((info->flags & RHIF_STATIC_BLOCK) == 0 && info->block != NULL)
+	if ((info->flags & RHIF_STATIC_BLOCK) == 0)
 		kfree(info->block);
 
 	if ((info->flags & RHIF_STATIC_INFO) == 0)
-- 
2.2.2

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