netdev - [PATCH net-next] drivers: net: davinci_mdio: fix return value check in davinci_mdio

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Message-ID: <20190503111859.1023-1-weiyongjun1@huawei.com>
Date:   Fri, 3 May 2019 11:18:59 +0000
From:   Wei Yongjun <weiyongjun1@...wei.com>
To:     Grygorii Strashko <grygorii.strashko@...com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Arnd Bergmann <arnd@...db.de>, Andrew Lunn <andrew@...n.ch>,
        Sekhar Nori <nsekhar@...com>, Fugang Duan <fugang.duan@....com>
CC:     Wei Yongjun <weiyongjun1@...wei.com>, <linux-omap@...r.kernel.org>,
        <netdev@...r.kernel.org>, <kernel-janitors@...r.kernel.org>
Subject: [PATCH net-next] drivers: net: davinci_mdio: fix return value check in davinci_mdio_probe()

In case of error, the function devm_ioremap() returns NULL pointer not
ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.

Fixes: 03f66f067560 ("net: ethernet: ti: davinci_mdio: use devm_ioremap()")
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
---
 drivers/net/ethernet/ti/davinci_mdio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
index 11642721c123..38b7f6d35759 100644
--- a/drivers/net/ethernet/ti/davinci_mdio.c
+++ b/drivers/net/ethernet/ti/davinci_mdio.c
@@ -398,8 +398,8 @@ static int davinci_mdio_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	data->regs = devm_ioremap(dev, res->start, resource_size(res));
-	if (IS_ERR(data->regs))
-		return PTR_ERR(data->regs);
+	if (!data->regs)
+		return -ENOMEM;
 
 	davinci_mdio_init_clk(data);