linux-kernel - [PATCH] SCSI-libfc: Delete an unnecessary check before the function call "kmem_cache

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Message-ID: <564997B5.6030703@users.sourceforge.net>
Date:	Mon, 16 Nov 2015 09:45:41 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	"James E. J. Bottomley" <JBottomley@...n.com>,
	fcoe-devel@...n-fcoe.org, linux-scsi@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] SCSI-libfc: Delete an unnecessary check before the function
 call "kmem_cache_destroy"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Mon, 16 Nov 2015 09:39:12 +0100

The kmem_cache_destroy() 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/scsi/libfc/fc_fcp.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c
index 5121272..d377514 100644
--- a/drivers/scsi/libfc/fc_fcp.c
+++ b/drivers/scsi/libfc/fc_fcp.c
@@ -2216,8 +2216,7 @@ int fc_setup_fcp(void)
 
 void fc_destroy_fcp(void)
 {
-	if (scsi_pkt_cachep)
-		kmem_cache_destroy(scsi_pkt_cachep);
+	kmem_cache_destroy(scsi_pkt_cachep);
 }
 
 /**
-- 
2.6.2

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