linux-kernel - [PATCH -next] RDMA/core: Remove NULL check before dev

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Message-Id: <20231024003815.89742-1-yang.lee@linux.alibaba.com>
Date:   Tue, 24 Oct 2023 08:38:15 +0800
From:   Yang Li <yang.lee@...ux.alibaba.com>
To:     jgg@...pe.ca, leon@...nel.org
Cc:     linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
        Yang Li <yang.lee@...ux.alibaba.com>,
        Abaci Robot <abaci@...ux.alibaba.com>
Subject: [PATCH -next] RDMA/core: Remove NULL check before dev_{put, hold}

The call netdev_{put, hold} of dev_{put, hold} will check NULL,
so there is no need to check before using dev_{put, hold},
remove it to silence the warning:

./drivers/infiniband/core/nldev.c:375:2-9: WARNING: NULL check before dev_{put, hold} functions is not needed.

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7047
Signed-off-by: Yang Li <yang.lee@...ux.alibaba.com>
---
 drivers/infiniband/core/nldev.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c
index 87b8cd657fb3..4900a0848124 100644
--- a/drivers/infiniband/core/nldev.c
+++ b/drivers/infiniband/core/nldev.c
@@ -371,8 +371,7 @@ static int fill_port_info(struct sk_buff *msg,
 	}
 
 out:
-	if (netdev)
-		dev_put(netdev);
+	dev_put(netdev);
 	return ret;
 }
 
-- 
2.20.1.7.g153144c