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Date:   Fri, 4 Dec 2020 16:49:42 +0800
From:   Zhang Changzhong <zhangchangzhong@...wei.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Oleksandr Mazur <oleksandr.mazur@...ision.eu>,
        Serhiy Pshyk <serhiy.pshyk@...ision.eu>,
        Vadym Kochan <vadym.kochan@...ision.eu>,
        Volodymyr Mytnyk <volodymyr.mytnyk@...ision.eu>
CC:     Zhang Changzhong <zhangchangzhong@...wei.com>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH net] net: marvell: prestera: Fix error return code in prestera_port_create()

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 501ef3066c89 ("net: marvell: prestera: Add driver for Prestera family ASIC devices")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@...wei.com>
---
 drivers/net/ethernet/marvell/prestera/prestera_main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c
index 0f20e07..da4b286 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_main.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c
@@ -318,8 +318,10 @@ static int prestera_port_create(struct prestera_switch *sw, u32 id)
 		goto err_port_init;
 	}
 
-	if (port->fp_id >= PRESTERA_MAC_ADDR_NUM_MAX)
+	if (port->fp_id >= PRESTERA_MAC_ADDR_NUM_MAX) {
+		err = -EINVAL;
 		goto err_port_init;
+	}
 
 	/* firmware requires that port's MAC address consist of the first
 	 * 5 bytes of the base MAC address
-- 
2.9.5

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