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

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Message-ID: <546E2B02.5090902@users.sourceforge.net>
Date:	Thu, 20 Nov 2014 18:55:14 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	"James E. J. Bottomley" <JBottomley@...allels.com>,
	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: Deletion of unnecessary checks before the function
 call "put_device"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Thu, 20 Nov 2014 18:48:52 +0100

The put_device() 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/hosts.c      | 3 +--
 drivers/scsi/scsi_sysfs.c | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index 6de80e3..57afb19 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -337,8 +337,7 @@ static void scsi_host_dev_release(struct device *dev)
 
 	kfree(shost->shost_data);
 
-	if (parent)
-		put_device(parent);
+	put_device(parent);
 	kfree(shost);
 }
 
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 8b4105a..c977c99 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -426,8 +426,7 @@ static void scsi_device_dev_release_usercontext(struct work_struct *work)
 	kfree(sdev->inquiry);
 	kfree(sdev);
 
-	if (parent)
-		put_device(parent);
+	put_device(parent);
 }
 
 static void scsi_device_dev_release(struct device *dev)
-- 
2.1.3

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