linux-kernel - [PATCH 5.4 29/39] net: mvpp2: Fix error return code in mvpp2

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Message-Id: <20201206111556.082965251@linuxfoundation.org>
Date:   Sun,  6 Dec 2020 12:17:33 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Hulk Robot <hulkci@...wei.com>,
        Wang Hai <wanghai38@...wei.com>, Andrew Lunn <andrew@...n.ch>,
        Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH 5.4 29/39] net: mvpp2: Fix error return code in mvpp2_open()

From: Wang Hai <wanghai38@...wei.com>

[ Upstream commit 82a10dc7f0960735f40e8d7d3bee56934291600f ]

Fix to return negative error code -ENOENT from invalid configuration
error handling case instead of 0, as done elsewhere in this function.

Fixes: 4bb043262878 ("net: mvpp2: phylink support")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Wang Hai <wanghai38@...wei.com>
Reviewed-by: Andrew Lunn <andrew@...n.ch>
Link: https://lore.kernel.org/r/20201203141806.37966-1-wanghai38@huawei.com
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -3696,6 +3696,7 @@ static int mvpp2_open(struct net_device
 	if (!valid) {
 		netdev_err(port->dev,
 			   "invalid configuration: no dt or link IRQ");
+		err = -ENOENT;
 		goto err_free_irq;
 	}