linux-kernel - [PATCH 01/12] staging/lustre/ldlm: Delete unnecessary checks before the function call "kset

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Message-ID: <c65e8b79-6bc8-553c-ff59-6d64d25f03ef@users.sourceforge.net>
Date:	Tue, 26 Jul 2016 20:56:43 +0200
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	devel@...verdev.osuosl.org, lustre-devel@...ts.lustre.org,
	Andreas Dilger <andreas.dilger@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Oleg Drokin <oleg.drokin@...el.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>,
	Bhumika Goyal <bhumirks@...il.com>
Subject: [PATCH 01/12] staging/lustre/ldlm: Delete unnecessary checks before
 the function call "kset_unregister"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 26 Jul 2016 11:33:43 +0200

The kset_unregister() function tests whether its argument is NULL
and then returns immediately. Thus the test around the calls is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
index 821939f..2c1c2fc 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
@@ -1067,10 +1067,8 @@ static int ldlm_cleanup(void)
 	if (ldlm_state->ldlm_cb_service)
 		ptlrpc_unregister_service(ldlm_state->ldlm_cb_service);
 
-	if (ldlm_ns_kset)
-		kset_unregister(ldlm_ns_kset);
-	if (ldlm_svc_kset)
-		kset_unregister(ldlm_svc_kset);
+	kset_unregister(ldlm_ns_kset);
+	kset_unregister(ldlm_svc_kset);
 	if (ldlm_kobj)
 		kobject_put(ldlm_kobj);
 
-- 
2.9.2