linux-kernel - [PATCH] [media] cobalt: remove redundant zero check on retval

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Message-Id: <20170905151944.20491-1-colin.king@canonical.com>
Date:   Tue,  5 Sep 2017 16:19:44 +0100
From:   Colin King <colin.king@...onical.com>
To:     Hans Verkuil <hans.verkuil@...co.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] [media] cobalt: remove redundant zero check on retval

From: Colin Ian King <colin.king@...onical.com>

The error handling paths all end up with retval being non-zero,
so the check for retval being zero is always false and hence
is redundant. Remove it.

Detected by CoverityScan CID#1309479 ("Logically dead code")

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/media/pci/cobalt/cobalt-driver.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/media/pci/cobalt/cobalt-driver.c b/drivers/media/pci/cobalt/cobalt-driver.c
index 98b6cb9505d1..8487ecaa4d30 100644
--- a/drivers/media/pci/cobalt/cobalt-driver.c
+++ b/drivers/media/pci/cobalt/cobalt-driver.c
@@ -767,8 +767,6 @@ static int cobalt_probe(struct pci_dev *pci_dev,
 err_wq:
 	destroy_workqueue(cobalt->irq_work_queues);
 err:
-	if (retval == 0)
-		retval = -ENODEV;
 	cobalt_err("error %d on initialization\n", retval);
 
 	v4l2_device_unregister(&cobalt->v4l2_dev);
-- 
2.14.1