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From:   Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
To:     davem@davemloft.net
Cc:     kuba@kernel.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Subject: [PATCH] net: davicom: Remove redundant assignment to ret
Date:   Sun, 25 Apr 2021 18:42:56 +0800
Message-Id: <1619347376-56140-1-git-send-email-jiapeng.chong@linux.alibaba.com>
Precedence: bulk

Variable ret is set to zero but this value is never read as it is
overwritten with a new value later on, hence it is a redundant
assignment and can be removed.

Cleans up the following clang-analyzer warning:

drivers/net/ethernet/davicom/dm9000.c:1527:5: warning: Value stored to
'ret' is never read [clang-analyzer-deadcode.DeadStores].

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
---
 drivers/net/ethernet/davicom/dm9000.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c
index 8a9096a..e0c0349 100644
--- a/drivers/net/ethernet/davicom/dm9000.c
+++ b/drivers/net/ethernet/davicom/dm9000.c
@@ -1524,7 +1524,6 @@ static struct dm9000_plat_data *dm9000_parse_dt(struct device *dev)
 			if (ret) {
 				dev_err(db->dev, "irq %d cannot set wakeup (%d)\n",
 					db->irq_wake, ret);
-				ret = 0;
 			} else {
 				irq_set_irq_wake(db->irq_wake, 0);
 				db->wake_supported = 1;
-- 
1.8.3.1