netdev - [PATCH net-next 04/37] can: raw: Remove NULL check before dev

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Message-Id: <20231005195812.549776-5-mkl@pengutronix.de>
Date: Thu,  5 Oct 2023 21:57:39 +0200
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
	kuba@...nel.org,
	linux-can@...r.kernel.org,
	kernel@...gutronix.de,
	Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>,
	Abaci Robot <abaci@...ux.alibaba.com>,
	Simon Horman <horms@...nel.org>,
	Oliver Hartkopp <socketcan@...tkopp.net>,
	Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH net-next 04/37] can: raw: Remove NULL check before dev_{put, hold}

From: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>

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:

./net/can/raw.c:497:2-9: 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=6231
Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Reported-by: Simon Horman <horms@...nel.org>
Acked-by: Oliver Hartkopp <socketcan@...tkopp.net>
Link: https://lore.kernel.org/all/20230825064656.87751-1-jiapeng.chong@linux.alibaba.com
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 net/can/raw.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/can/raw.c b/net/can/raw.c
index 73468d2ebd51..e6b822624ba2 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -493,8 +493,7 @@ static int raw_bind(struct socket *sock, struct sockaddr *uaddr, int len)
 
 out_put_dev:
 	/* remove potential reference from dev_get_by_index() */
-	if (dev)
-		dev_put(dev);
+	dev_put(dev);
 out:
 	release_sock(sk);
 	rtnl_unlock();
-- 
2.40.1