netdev - [PATCH v2] net: dsa: bcm_sf2: Propagate error value from mdio

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Date:   Wed, 26 Dec 2018 11:50:01 -0600
From:   Kangjie Lu <kjlu@....edu>
To:     kjlu@....edu
Cc:     pakki001@....edu, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2] net: dsa: bcm_sf2: Propagate error value from mdio_write

Both bcm_sf2_sw_indir_rw and mdiobus_write_nested could fail, so let's
return their error codes upstream.

Signed-off-by: Kangjie Lu <kjlu@....edu>
---
 drivers/net/dsa/bcm_sf2.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index 2eb68769562c..73fbc16a1f86 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -305,9 +305,8 @@ static int bcm_sf2_sw_mdio_write(struct mii_bus *bus, int addr, int regnum,
 	if (addr == BRCM_PSEUDO_PHY_ADDR && priv->indir_phy_mask & BIT(addr))
 		bcm_sf2_sw_indir_rw(priv, 0, addr, regnum, val);
 	else
-		mdiobus_write_nested(priv->master_mii_bus, addr, regnum, val);
-
-	return 0;
+		return mdiobus_write_nested(priv->master_mii_bus,
+				addr, regnum, val);
 }
 
 static irqreturn_t bcm_sf2_switch_0_isr(int irq, void *dev_id)
-- 
2.17.2 (Apple Git-113)