linux-kernel - [PATCH] uwb/whci: Delete an unnecessary check before the function call "umc_device

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Date:	Thu, 05 Feb 2015 21:45:02 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	linux-usb@...r.kernel.org
CC:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] uwb/whci: Delete an unnecessary check before the function
 call "umc_device_unregister"

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Thu, 5 Feb 2015 21:40:29 +0100

The umc_device_unregister() 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/uwb/whci.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/uwb/whci.c b/drivers/uwb/whci.c
index 46b7cfc..c3ee39a 100644
--- a/drivers/uwb/whci.c
+++ b/drivers/uwb/whci.c
@@ -133,8 +133,7 @@ static void whci_del_cap(struct whci_card *card, int n)
 {
 	struct umc_dev *umc = card->devs[n];
 
-	if (umc != NULL)
-		umc_device_unregister(umc);
+	umc_device_unregister(umc);
 }
 
 static int whci_n_caps(struct pci_dev *pci)
-- 
2.2.2

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