netdev - [PATCH net-next 1/5] enetc: Fix if

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Date:   Fri,  6 Sep 2019 17:15:40 +0300
From:   Claudiu Manoil <claudiu.manoil@....com>
To:     "David S . Miller" <davem@...emloft.net>
Cc:     alexandru.marginean@....com, netdev@...r.kernel.org
Subject: [PATCH net-next 1/5] enetc: Fix if_mode extraction

Fix handling of error return code. Before this fix,
the error code was handled as unsigned type.
Also, on this path if if_mode not found then just handle
it as fixed link (i.e mac2mac connection).

Signed-off-by: Claudiu Manoil <claudiu.manoil@....com>
---
 drivers/net/ethernet/freescale/enetc/enetc_pf.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.c b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
index 7d6513ff8507..3a556646a2fb 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
@@ -751,6 +751,7 @@ static int enetc_of_get_phy(struct enetc_ndev_priv *priv)
 	struct enetc_pf *pf = enetc_si_priv(priv->si);
 	struct device_node *np = priv->dev->of_node;
 	struct device_node *mdio_np;
+	int phy_mode;
 	int err;
 
 	if (!np) {
@@ -784,17 +785,11 @@ static int enetc_of_get_phy(struct enetc_ndev_priv *priv)
 		}
 	}
 
-	priv->if_mode = of_get_phy_mode(np);
-	if (priv->if_mode < 0) {
-		dev_err(priv->dev, "missing phy type\n");
-		of_node_put(priv->phy_node);
-		if (of_phy_is_fixed_link(np))
-			of_phy_deregister_fixed_link(np);
-		else
-			enetc_mdio_remove(pf);
-
-		return -EINVAL;
-	}
+	phy_mode = of_get_phy_mode(np);
+	if (phy_mode < 0)
+		priv->if_mode = PHY_INTERFACE_MODE_NA; /* fixed link */
+	else
+		priv->if_mode = phy_mode;
 
 	return 0;
 }
-- 
2.17.1