linux-kernel - [PATCH 1/1] s390/pci: Deletion of unnecessary checks before the function call "debug

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Date:	Sat, 22 Nov 2014 15:05:27 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Heiko Carstens <heiko.carstens@...ibm.com>,
	Gerald Schaefer <gerald.schaefer@...ibm.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Sebastian Ott <sebott@...ux.vnet.ibm.com>, linux390@...ibm.com,
	linux-s390@...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] s390/pci: Deletion of unnecessary checks before the function
 call "debug_unregister"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 22 Nov 2014 15:00:55 +0100

The debug_unregister() function performs also input parameter validation.
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/s390/pci/pci_debug.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/s390/pci/pci_debug.c b/arch/s390/pci/pci_debug.c
index eec598c..18403a7 100644
--- a/arch/s390/pci/pci_debug.c
+++ b/arch/s390/pci/pci_debug.c
@@ -158,10 +158,8 @@ int __init zpci_debug_init(void)
 
 void zpci_debug_exit(void)
 {
-	if (pci_debug_msg_id)
-		debug_unregister(pci_debug_msg_id);
-	if (pci_debug_err_id)
-		debug_unregister(pci_debug_err_id);
+	debug_unregister(pci_debug_msg_id);
+	debug_unregister(pci_debug_err_id);
 
 	debugfs_remove(debugfs_root);
 }
-- 
2.1.3

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