From 8d0752d11312be830c33e84dfd1016e6a47c2938 Mon Sep 17 00:00:00 2001
From: Brandon Maier <brandon.maier@rockwellcollins.com>
Date: Tue, 26 Jun 2018 12:50:50 -0500
Subject: [PATCH] net: phy: xgmiitorgmii: Check read_status results
Git-commit: 8d0752d11312be830c33e84dfd1016e6a47c2938
Patch-mainline: v4.19-rc1
References: bsc#1051510

We're ignoring the result of the attached phy device's read_status().
Return it so we can detect errors.

Signed-off-by: Brandon Maier <brandon.maier@rockwellcollins.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/net/phy/xilinx_gmii2rgmii.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/net/phy/xilinx_gmii2rgmii.c
+++ b/drivers/net/phy/xilinx_gmii2rgmii.c
@@ -40,8 +40,11 @@ static int xgmiitorgmii_read_status(stru
 {
 	struct gmii2rgmii *priv = phydev->priv;
 	u16 val = 0;
+	int err;
 
-	priv->phy_drv->read_status(phydev);
+	err = priv->phy_drv->read_status(phydev);
+	if (err < 0)
+		return err;
 
 	val = mdiobus_read(phydev->mdio.bus, priv->addr, XILINX_GMII2RGMII_REG);
 	val &= ~XILINX_GMII2RGMII_SPEED_MASK;