linux-kernel - [PATCH 09/17] s390/debug: Return directly if a null pointer was passed to debug

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Message-ID: <9c7f85c9-75db-99fb-88ce-b3e6f01b69db@users.sourceforge.net>
Date:   Sat, 3 Sep 2016 14:24:57 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-s390@...r.kernel.org,
        David Hildenbrand <dahi@...ux.vnet.ibm.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Joe Perches <joe@...ches.com>,
        Martin Schwidefsky <schwidefsky@...ibm.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Julia Lawall <julia.lawall@...6.fr>,
        Paolo Bonzini <pbonzini@...hat.com>
Subject: [PATCH 09/17] s390/debug: Return directly if a null pointer was
 passed to debug_unregister()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Thu, 1 Sep 2016 19:34:45 +0200

Return directly at the beginning if a null pointer was passed for
the input parameter of this function.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 arch/s390/kernel/debug.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index c4a4641..d137150 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -736,13 +736,10 @@ void
 debug_unregister(debug_info_t * id)
 {
 	if (!id)
-		goto out;
+		return;
 	mutex_lock(&debug_mutex);
 	debug_info_put(id);
 	mutex_unlock(&debug_mutex);
-
-out:
-	return;
 }
 EXPORT_SYMBOL(debug_unregister);
 
-- 
2.9.3