linux-kernel - [PATCH 1/1] [media] firewire: Deletion of an unnecessary check before the function call "dvb_unregister

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Message-ID: <546DBA8E.6080401@users.sourceforge.net>
Date:	Thu, 20 Nov 2014 10:55:26 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Mauro Carvalho Chehab <m.chehab@...sung.com>,
	Stefan Richter <stefanr@...6.in-berlin.de>,
	linux-media@...r.kernel.org, linux1394-devel@...ts.sourceforge.net
CC:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH 1/1] [media] firewire: Deletion of an unnecessary check before
 the function call "dvb_unregister_device"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Thu, 20 Nov 2014 10:49:07 +0100

The dvb_unregister_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/media/firewire/firedtv-ci.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/firewire/firedtv-ci.c b/drivers/media/firewire/firedtv-ci.c
index e5ebdbf..e63f582 100644
--- a/drivers/media/firewire/firedtv-ci.c
+++ b/drivers/media/firewire/firedtv-ci.c
@@ -253,6 +253,5 @@ int fdtv_ca_register(struct firedtv *fdtv)
 
 void fdtv_ca_release(struct firedtv *fdtv)
 {
-	if (fdtv->cadev)
-		dvb_unregister_device(fdtv->cadev);
+	dvb_unregister_device(fdtv->cadev);
 }
-- 
2.1.3

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