linux-kernel - [PATCH] net: ethoc: Make use of the helper function dev_err

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Message-ID: <20210915145828.7516-1-caihuoqing@baidu.com>
Date:   Wed, 15 Sep 2021 22:58:27 +0800
From:   Cai Huoqing <caihuoqing@...du.com>
To:     <caihuoqing@...du.com>
CC:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] net: ethoc: Make use of the helper function dev_err_probe()

When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
And using dev_err_probe() can reduce code size, and simplify the code.

Signed-off-by: Cai Huoqing <caihuoqing@...du.com>
---
 drivers/net/ethernet/ethoc.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/ethoc.c b/drivers/net/ethernet/ethoc.c
index ed1ed48e7483..0064ebdaf4b4 100644
--- a/drivers/net/ethernet/ethoc.c
+++ b/drivers/net/ethernet/ethoc.c
@@ -707,20 +707,16 @@ static int ethoc_mdio_probe(struct net_device *dev)
 	else
 		phy = phy_find_first(priv->mdio);
 
-	if (!phy) {
-		dev_err(&dev->dev, "no PHY found\n");
-		return -ENXIO;
-	}
+	if (!phy)
+		return dev_err_probe(&dev->dev, -ENXIO, "no PHY found\n");
 
 	priv->old_duplex = -1;
 	priv->old_link = -1;
 
 	err = phy_connect_direct(dev, phy, ethoc_mdio_poll,
 				 PHY_INTERFACE_MODE_GMII);
-	if (err) {
-		dev_err(&dev->dev, "could not attach to PHY\n");
-		return err;
-	}
+	if (err)
+		return dev_err_probe(&dev->dev, err, "could not attach to PHY\n");
 
 	phy_set_max_speed(phy, SPEED_100);
 
-- 
2.25.1