linux-kernel - [PATCH 1/1] SCSI-OSD: Deletion of an unnecessary check before the function call "put

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Date:	Thu, 20 Nov 2014 18:23:22 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Benny Halevy <bhalevy@...marydata.com>,
	Boaz Harrosh <openosd@...il.com>,
	"James E. J. Bottomley" <JBottomley@...allels.com>,
	osd-dev@...n-osd.org, linux-scsi@...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] SCSI-OSD: Deletion of an unnecessary check before the
 function call "put_disk"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Thu, 20 Nov 2014 18:11:28 +0100

The put_disk() 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/osd/osd_uld.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/osd/osd_uld.c b/drivers/scsi/osd/osd_uld.c
index e1d9a4c..3d82ee1 100644
--- a/drivers/scsi/osd/osd_uld.c
+++ b/drivers/scsi/osd/osd_uld.c
@@ -408,8 +408,7 @@ static void __remove(struct device *dev)
 	OSD_INFO("osd_remove %s\n",
 		 oud->disk ? oud->disk->disk_name : NULL);
 
-	if (oud->disk)
-		put_disk(oud->disk);
+	put_disk(oud->disk);
 	ida_remove(&osd_minor_ida, oud->minor);
 
 	kfree(oud);
-- 
2.1.3

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