From 8d0752d11312be830c33e84dfd1016e6a47c2938 Mon Sep 17 00:00:00 2001 From: Brandon Maier Date: Tue, 26 Jun 2018 12:50:50 -0500 Subject: [PATCH] net: phy: xgmiitorgmii: Check read_status results 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 Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/phy/xilinx_gmii2rgmii.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/phy/xilinx_gmii2rgmii.c b/drivers/net/phy/xilinx_gmii2rgmii.c index d6f8b64cddbe..74a8782313cf 100644 --- a/drivers/net/phy/xilinx_gmii2rgmii.c +++ b/drivers/net/phy/xilinx_gmii2rgmii.c @@ -42,8 +42,11 @@ static int xgmiitorgmii_read_status(struct phy_device *phydev) struct mii_bus *bus = priv->mdio->bus; int addr = priv->mdio->addr; 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(bus, addr, XILINX_GMII2RGMII_REG); val &= ~XILINX_GMII2RGMII_SPEED_MASK;